JumlahCore adalah jumlah inti yang digunakan pada processor. Biasanya digunakan untuk menentukan istilah dari Prosesor Dual Core, Quad Core, Hexa Core, dan Octa-core yaitu Single = 1. Prosesor Single Core = 1 Core; Prosesor Dual Core = 2 Core; Prosesor Quad Core = 4 Core; Prosesor Hexa Core = 6 Core; Prosesor Octa Core = 8 Core; Prosesor Deca Core = 10 Core Heyguys..😎😎In this video i explain what is dual core , quad core , hexa core, octa core, deca core processorDeca core is latest in the marketDeca core fas inthis video i told you what is core in computer and mobile phoneif you like this video than like this and subscribe my channel Itis the cheapest Core i9 CPU and is even faster than the AMD Ryzen 7 1800X which is the top-of-range Ryzen 7 processor from AMD. Intel Core i9-7900X is a Deca-core (10 cores) processor and it comes with 13.75MB cache. The processor has got a base frequency of 3.30 GHz and Maximum Turbo Frequency of 4.30 GHz. Helio X20 Deca core processor (2 x 2GHz Cortex A72 + 4 x 1.9GHz Cortex A53 + 4 x 1 ShortDescription: VANKYO MatrixPad S30 10 inch Octa - Core Tablet , Android 9.0 Pie, 3GB RAM, 32GB Storage, 13MP Rear Camera, 1920x1200 IPS Full HD Display, Bluetooth 5.0, Product Description Note: Discount may be change week by week on Amazon. Dịch Vụ Hỗ Trợ Vay Tiền Nhanh 1s. Quad Core Vs Octa Core Have you ever wanted to know more about which one is best like Quad Core Vs Octa Core, or which core will affect the performance or even just what are the different types of cores to choose from? Lets, get to the details and know more about them and start with what is a core In the beginning when you start learning about computers first thing they teach us is about the processing unit or Central Processing UnitCPU as this is the main part of the computer system or you can say it as the brain of the computer, where all the transaction, instructions, functions, and many other tasks are performed. Most of the earlier computers used to have this CPU on a single Integrated Circuit Chip along with the memory. The other peripheral device interfaces, and many other components. This chip including the CPU performs all the arithmetic and logical instructions. Thus it is the central unit that performs all the commands sent to ALU arithmetic Logic Unit. During the course of time, the processing of the data and handling of the instruction requirement has substantially increased. To support these requirements it has been designed to add two or more CPUs to that single chip or you can say more cores or multi-cores on a single chip. If you talk about the basic functionalities of the core which are to Fetch the instruction, DECODE the instructions and Execute the instructions. Now you got the definition of the core as a single CPU and similarly, multi-core could define as two or more CPUs. Modern computers can accommodate these multi-core processors on a single socket, supported with single heat sink and fan to control the temperature. Let’s get into more details to see Quad Core vs Octa Core Dual-Core, Quad-Core, Hexa and Octa-Core As we see that CPU or a core handles the instructions and processes them so more the cores then it can handle more instructions and processes. By the use of a multi-core processor, we can achieve the high performing functionalities like multi-threading or parallel computing. So, when you want to purchase or build a computer consider whichmulti-core processor to add to gain the extra speed and the improved functionalityof the computer. In today’s market of processors, there are many companies competing each other but the leaders among them are Intel and AMD Advanced Micro Devices and the other companies which mainly focus on the mobile and tablet are Snapdragon, MediaTek, Apple and Samsung. Intel Processor ModelAMD Processor ModelDesktops Celeron, Pentium, CoreSempron, Athlon, PhenomMobile Celeron M, Pentium M, Core mobile processorSempron, Athlon, Turion Single CoreYesYesMutli Core YesYesModels Intel Pentium Dual-core processor Intel i3, i5, i7, and i9 Processors Intel Xeon Processors AMD A4, A6, A8, A10 AMD FX Processors AMD Ryzen Processors AMD Ryzen Threadripper Processor Each processor has multiple factors which determine the speed or the performance of the processor like Clock RateCacheFront Side Bus Clock Rate Each processor has the clock rate, which is the frequency of the clock pulse to execute the instructions. Thus the higher the clock rate, the more instructions can be handled by the CPU. With the increased clock rate, you will have an increase in energy consumption, thus producing more heat. So when you are buying a computer with a higher clock rate look for the best cooling solution also. Cache Today’s modern CPUs have different levels of caches including Instruction cache or data caches. These caches are used to reduce the average cost by storing the copies of data which is most frequently accesses from the main memory. Acting as a bridge in between RAM and the processor. Front Side Bus FSB It is a connector to the Random Access Memory, to determine the speed of the processor is determined by clock multiplier to the FSB. CPU speeds can vary with a different combination of different FSB frequency or the clock multiplier. If you have a computer with a Dual-Core processor then it is like having two individual CPUs installed in one single chip which will handle more instructions at a time. Thus it will increase the performance from the normal Single core processor. And similarly Quad-Core will have 4 cores on the single IC chip which is used to handle even more instructions and operations and similarly, the HEXA Core is with 6 cores. Unlike the QUAD Core, the Hexacore is not implemented in many devices. Octa-Core as the name says it has 8 Cores and it has double the speed as the Quad Core processor has. So, the device with Octa-core can handle double the number of instructions that can be handled by Quad-Core. Decision Whether you are upgrading your current PC or buying a new PC basic and the first criteria will be the budget, based on your budget look for the available best processor which will give you the speed performance for some years to come. Based on the factors we discussed Quad Core Vs Octa Core above will help you decide the new processor to purchase. For eg. The processor with the size of is much more recommended over the processor of size The amount of the Cache of the processor reflects the speed of the processor, more the size of Cache the more speed you can get from the processor. Go for the max available cache within your budget. NoteIf you only want to change the processor look for the socket size of the processor as it is different for the different consider the heat sink and an appropriate fan to provide the required cooling. For example the processor from intel Intel i7 10th Gen up to and 8M Cache It has and an 8M of cache memory, which is one of the pretty good processors to consider. Conclusion The multi-core processors dual, quad, Hexa or octa-core processor will increase the speed of your computer by performing multiple tasks subsequently. Along with the core look for the FSB, go for the higher FSB available within your budget. So, next time you purchase a new processor or a full set of PC we wish you have the best computing speed for years coming till the technology phases out. If you like the post or find any little information helpful please share the post and send your comments to us it matters to us a lot. What types of CPU should you buy? There are a few different options out there and when you buy a central processing unit, it can be hard to know just what you really need in terms of speed, core, costs, brands, and more. It is complicated and it isn’t something we talk about all that often. Still, a CPU is known as the “brain of the computer,” which means that it is actually one of the most important things. A good CPU helps with multitasking, performance, and speed above all else, but it helps overall efficiency in a million little ways. In this guide, our experts will break down the different central processing unit types and help you understand where you should look, what you should look for, and how you can use each one. Keep reading for more. ContentsWhat Is a CPU?Different Types of CPU Explained– Single-Core CPU– Dual-Core CPU– Quad-Core CPU– Hexa-Core Processor– Octa-Core Processor– Deca-Core ProcessorAMD vs Intel Processors– AMD CPUs– Intel CPUs– ARM CPUsCan a Computer Function Without a CPU?In Conclusion What Is a CPU? CPU is the shortened and more commonly used form of central processing unit or processor. The “unit” is composed of two parts the central processor and the electronic circuitry that is located within the tower of your computer. The CPU is a multitasking device that feeds the computer information, performs logic and arithmetic for programs, and inputs and outputs operations. It is one of the core elements of the computer but up until recently, there hasn’t been much discussion on them amongst the general public. CPUs now have microprocessors that use integrated circuits that have a unit metal-oxide-semiconductor. This chip has the CPU as well as memory chips, microcontrollers, interfaces, and other systems. This chip takes up a single socket as a “CPU core.” Different Types of CPU Explained Your CPU is one of the most important elements of your computer, managing almost all of the commands and calculations that make it work properly. It controls components, peripherals, and important processes no matter what you do. A CPU needs to rapidly input and output information. The different components all need to be powerful enough to work together everything will perform to the capabilities of the slowest, weakest part. It is important to know that there are two leading manufacturers of CPU processors AMD and Intel. There are other manufacturers, but these are the most prolific. When we talk about the type of central processing unit, we need to think about not only the number of cores, but the brand, size, speed, and more. However, the most defining component is the number of cores, so that is how we classify the different types of CPUs. – Single-Core CPU The original type of CPU was a single-core CPU. It is available widely and used in most standard personal computers and business computers. These CPUs can only execute one command at a time, making them poor options for multitasking. If you are trying to do more than one thing at a time, it is possible, but you will notice a degradation in performance. If one operation starts, the next process will have to wait in a virtual queue of sorts until the first one finishes. The computer doesn’t like when these queues form and it could start to freeze and take a long time to perform operations that normally take just a few seconds. If possible, we don’t recommend this type of CPU at all unless someone just needs a computer for bare-bones activities like word processing or social media browsing. – Dual-Core CPU A dual core CPU consists of two cores that act like one CPU. This means that the CPU can multitask more effectively and allows two things to happen at once, or more. Once again, you can overload a dual-core CPU, but it is harder to do. To most effectively use a dual-core CPU, both the programs and the operating system need to have a unique code in them called a “simultaneous multi-threading technology” code. This is something found standard in most operating systems and programs today, but there are a few exceptions. Most computers today will have at least a dual-core CPU, even the ones you buy without customization. Even this number of cores is becoming outdated and limits future-proofing capabilities in your build. – Quad-Core CPU A quad-core CPU has four cores on a single CPU processor. It is a refined model that is used in the best computer builds today, especially in some of the best all-in-one computers and boxed computers. The CPU evenly divides the workload between the cores, making it the best option for multitasking. It doesn’t signify single operations, making it faster, lighter, and more efficient than the other cores. Just like with the dual-core CPU, quad-core CPUs use the SMT code to speed up the processes and make them seem instantaneous in many cases. For some people, a quad-core CPU will be overkill. However, gamers, programmers, and anyone who heavily uses the computer while streaming, playing music, editing, or using bulky programs would benefit from this CPU size. – Hexa-Core Processor Even bigger and faster than a quad-core CPU is the Hexa-core processor. This comes with six cores and can execute tasks faster than other models. This processor is limited and harder to find on personal computers than one would expect. Hexa-core processors are most commonly used in smartphones and tablets. Most smartphones including those from Android and Apple will use a hexacore processor. These processors make it possible to play games, listen to music, text, and get notifications all at the same time. – Octa-Core Processor Even rarer is the octa-core processor that has eight independent cores to go even faster. These processors are a bit more expensive and only necessary for people who need to work quickly for their jobs. Gamers can use an octa-core processor, but only professional gamers who play for money will really get the advantages out of it. There are core sets in this build that are typically tasked to do the repetitive, minimum powered activities that we do on a computer and then there are cores set aside for faster processing and action. With some software and builds, you can actually pick these programs, but that is a far more advanced level of computer building. – Deca-Core Processor A deca-core processor can come as a double core processor, four cores with quad cores, six cores, and more. Deca-core uses ten independent cores as well, though those are the most expensive and hardest to find options. These systems function just like the octa-core processors do, with some cores dedicated to mundane tasks while others perform the more advanced tasks. Newer smartphones and tablets are being manufactured with deca-core processors and modern manufacturing has made them lower in cost than other cores. For the foreseeable future at least, deca-cores are going to be future-proofed. Most new market items will have the deca-core processor as well, even budget or low-priced computers because of how much easier and cheaper the manufacturing process is. AMD vs Intel Processors When we talk about computer processors types, we talk about AMD and Intel for the most part. These manufacturers are both great, though they tend to be used in different situations. While they can be, and are, used in other builds, they tend to work best in these categories. – AMD CPUs AMD CPUs are most often used in servers and workstation computers for bigger corporations. They can be used in gaming computers as well, but that isn’t as common. The most common examples of CPU from AMD are K6-2 K6-III Athlon Duron Athlon XP Sempron Athlon 64 Mobile Athlon 64 Athlon XP-M Athlon 64 FX Turion 64 Athlon 64 X2 Turion 64 X2 Phenom FX Phenom X4 Phenom X3 Athlon 6-series Athlon 4-series Athlon X2 Phenom II Athlon II E2 series A4 series A6 series A8 series A10 series AMD doesn’t produce as many CPUs as Intel, but their CPUs tend to be the ones that push manufacturing forward. They use the latest technology in their builds. Their CPUs are generally more expensive but have incredible longevity. – Intel CPUs Intel CPUs are used most frequently in PC builds and smaller companies. The most common and well known Intel CPUs are 4004 8080 8086 8087 8088 80286 286 80386 386 80486 486 Pentium Pentium w/ MMX Pentium Pro Pentium II Celeron Pentium III Pentium M Celeron M Pentium 4 Mobile Pentium 4-M Pentium D Pentium Extreme Edition Core Duo Core 2 Duo Core i3 Core i5 Core i7 Core i9 For a long time, Intel was known as the “gold standard” for all CPUs, so it has a deeper base of CPUs. They have slowed down production in the last few years, however. Intel has created some great processors that have changed the game, but they have also had some clunkers. – ARM CPUs One manufacturer we don’t talk about all that often is ARM CPUs, even though they may make more CPUs than any other company. These CPUs are used in tablets, smartwatches, and smartphones because they are smaller and require less power. In turn, they are cheaper and generate less heat. Can a Computer Function Without a CPU? A computer cannot function without a CPU because it helps with the transmission of data. It can function with a bad CPU, but it is a difficult experience. You want to ensure that your CPU is compatible with everything else in your computer, in particular your motherboard. In Conclusion In general, the bigger your CPU is, the better it will be. By “bigger,” we mean that the more cores it has, the better it will perform and the faster it will be. If you are currently using a computer with a certain number of cores and you find that it freezes, slows down, or just performs strangely, that is a sign that you need more cores. In general, people need more cores and a better type of CPU if they do things like video editing, gaming, streaming, and more. There are budget-friendly options out there, so don’t always take money as the gauge for whether or not a CPU is a good match. If you aren’t experiencing any problems with your computer, or you don’t do any of the things listed above, you can buy a more basic CPU and spend your money elsewhere. The smartphone market becomes more competitive each year with manufacturers attempting to outdo each other on power, speed and battery life. More and more phones have octa-core processors, but are they better than quad-core and dual-core phones? We explain what you need to know about smartphone processor arms race between AMD and Intel has been hotting up since the early 2000s with the releases of the Athlon 64 and Intel’s Core 2 Duo back in 2005 and 2006 the years have gone by we’ve seen progression in not only the speed of each core, but the amount of cores on each physical chip. The latest high-end consumer processors contain up to 8 cores, although they are still much more powerful than those found in vs quad-core vs dual-core Smartphone processorsIn smartphones we’ve seen a similar progression, with quite a few phones boasting octa-core chips. Smartphones have rapidly caught up to computer processors with their core count, but why has this happened so quickly?The answer, in short, is a demand for better battery phones use ARM processors, and while it is – relatively speaking – fairly easy to put a powerful quad-core processor in the latest phone, battery technology isn’t really up to the job of keeping that processor along with the screen, modem, GPS and other components fed with power all day also Qualcomm Snapdragon 845 specs and featuresSo ARM developed what is effectively a dual quad-core processor a single chip with two sets of four cores able to share the same cache memory. It calls this set of cores can deliver high performance when required at the expense of high power drain, and the other set delivers a lower level of performance but also requires much less battery power. Usually, only one set of cores is used at one time, so for all practical purposes it’s really a quad-core low power’ cores are used for most of the time, including for tasks such as reading and sending email, navigating around the operating system, and also browsing the web. But when more power is needed, such as for intensive games or editing photos or video, the chip dynamically switches to the faster quartet of far, the only octa-core processors we’ve seen have been in Android phones, from manufacturers including Qualcomm, Samsung, MediaTek and a long time, Apple stuck with dual-core processors in the iPhone, and it was only in the iPhone 7 that it made the move to quad-core. But as with octa-core processors, the A10 Fusion chip actually uses a pair of dual-core chips, one high-performance pair and one energy efficient approach doesn’t always mean there are equal numbers of high- and low-performance cores. Some phones have hexa-core processors, which typically employ a pair of powerful cores, and four power-efficient cores. There are even octa-core chips which have eight low-power cores, such as the Qualcomm Snapdragon vs quad-core vs dual-core PerformanceCompare benchmarks, as you can in our smartphone charts, and you’ll see that an octa-core processor is not twice as fast as a quad-core. And given what you now know about the design of the chips, you wouldn’t expect them to the same with the iPhone 7 it’s not twice as quick as the iPhone 6s. The fact it’s 40 percent or so quicker is impressive, but that’s mainly down to the improvements made in the high-performance pair of cores, not because there are twice as many of particularly impressive is the way that iPhones have beaten or matched the best Android phones with – often – half as many forget that the main processor isn’t responsible for graphics performance. To a large extent this is down to the GPU – graphics processing unit. This is the biggest factor in determining how well games run on a phone, but the screen resolution must also be taken into account. You can see in this diagram that the CPU is only one of many components on a modern smartphone processor, which is called a SoC main point here is that a phone with an octa-core processor isn’t necessarily going to be a better choice for playing games. It may not even be a better choice for CPU-intensive apps, and this is why it’s important to read reviews and look at benchmark results if this kind of performance is important to you when choosing a course, we’re talking about processors and performance at a very high level here. Overall performance includes many more factors such as the size and speed of the on-board cache, the amount and type of RAM and the software being used. The latter is especially important, since apps need to be written to use all the available processing cores. This is all beyond the scope of this article, however. Suffice to say that Android – and iOS – are optimised for multi-core processors as are modern vs quad-core vs dual-core which is best?So let’s get to the main question. Is it best to buy a phone with the most cores you can get? Not have tested the performance of many, many phones, and there is no evidence that more cores equals better performance. As we said above, the extra cores are often there for efficiency and simply knowing the number of cores tells you nothing about the architecture of the CPU and how many of those cores are high it doesn’t really make sense to buy a phone based on its core count, just as you wouldn’t buy a car purely because of the number of cylinders in its engine there’s far, far more to if you are looking for a phone upgrade, be sure to check our round-up of the best phones to buy. When purchasing a new laptop or building a computer, the processor is the most important decision. But there's a lot of jargon, especially the cores. For example, do you need a dual-core processor, a quad-core, a hexacore, an octa-core, or more? Let's cut the jargon and understand what it all really means. Dual-Core vs. Quad-Core, Explained Here's everything you need to know There is always only one processor chip. That chip can have one, two, four, six, eight, ten, twelve, or even sixteen cores. So if you find a "single core" CPU, that means the processor chip has one core. And a dual-core processor has two cores, a quad-core has four, a hexa-core has six, an octa-core has eight, and so on. Currently, an 18-core processor is the best you can get in consumer PCs. I mean, you could buy a 64-core AMD Threadripper, which is available to consumers, but that's more processing power than most regular consumers could think of using. Each "core" is the part of the chip that does the processing work. Essentially, each core is a central processing unit CPU. This article deals with dual-core vs. quad-core processors for computers, not for smartphones. We have a separate post on understanding smartphone cores. The Difference Between Dual-Core and Quad-Core CPUs You might think more cores will make your processor faster overall, but that's not always the case. It's a little more complicated than that. More cores are faster only if a program can split its tasks between the cores. Not all programs are developed to split tasks between cores. More on this later. Each core's clock speed is also a crucial factor in speed, as is the architecture. A newer dual-core CPU with a higher clock speed will often outperform an older quad-core CPU with a lower clock speed. Power Consumption More cores also lead to higher power consumption by the processor. When the processor is switched on, it supplies power to all the cores, not just one at a time. Chip makers have been trying to reduce power consumption and make processors more energy efficient. But as a general rule of thumb, a quad-core processor will draw more power from your laptop and thus make it run out of battery faster. More Cores Equal More Heat More factors than the core affect the heat generated by a processor. But again, as a general rule, more cores lead to more heat. Due to this additional heat, manufacturers need to add better heat sinks or other cooling solutions. Are Quad-Core CPUs More Expensive Than Dual-Core? More cores isn't always a higher price. Like we said earlier, clock speed, architecture versions, and other considerations come into play. But if all other factors are the same, then more cores will fetch a higher price. Software Optimization for CPU Cores Here's the dirty little secret that chip manufacturers don't want you to know. It's not always about how many cores you are running; it's about what software you are running on them. Programs have to be specifically developed to take advantage of multiple processors. In the past, "multi-threaded software" wasn't as common, although as it's near-impossible to buy a single-core CPU these days, this issue isn't once what it was. However, it's important to note that even if it's a multi-threaded program, it's also about what it is used for. For example, the Google Chrome web browser supports multiple processes, as does video editing software Adobe Premiere Pro. Adobe Premiere Pro instructs different cores to work on different aspects of your edit. Considering the many layers involved in video editing, this makes sense, as each core can work on a separate task. Similarly, Google Chrome instructs different cores to work on different tabs. But herein lies the problem. Once you open a web page in a tab, it is usually static after that. There is no further processing work needed; the rest of the work is about storing the page in the RAM. This means even though the core can be used for a background tab, it is unnecessary. This Google Chrome example is an illustration of how even multi-threaded software might not give you much of a real-world performance boost. Double the Cores Is Not Double the Speed So let's say you have the right software and all your other hardware is the same. Would a quad-core processor then be twice as fast as a dual-core processor? Nope. Increasing cores does not address the software problem of scaling. Scaling to cores is the theoretical ability of any software to assign the right tasks to the right cores, so each core is computing at its optimal speed. That's not what happens in reality. In reality, tasks are split sequentially which most multi-threaded software does or randomly. For example, let's say you have a quad-core processor Core1, Core2, Core3, Core4. You need to accomplish three tasks T1, T2, T3 to finish an action, and you have five actions A1, A2, A3, A4, A5 like this. Here's how the software will divide tasks Core1 = A1T1 Core2 = A1T2 Core3 = A1T3 Core4 = A2T1 The software is not smart, though. If A1T3 is the hardest and longest task, the software should have split A1T3 between Core3 and Core4. But now, even after Core1 and Core2 finish their tasks, they have to wait for the slower Core3's task to complete the action. All of this is a roundabout way of saying that not all software is optimized to take full advantage of multiple cores. And doubling the cores does not always equal doubling the speeds. Where Do More Cores Really Help? Now that you know what cores do and their restrictions in boosting performance, you must be asking yourself, "Do I need more cores?" Well, it depends on what you plan to do with them. Dual-Core and Quad-Core in Gaming If you fancy yourself to be a gamer, then get more cores on a gaming PC. The vast majority of new AAA titles popular games from big studios support multi-threaded architecture. Video games are still largely dependent on the graphics card to look good, but a multi-core processor helps too. Editing Videos or Audio For any professional who works with video or audio programs, more cores will be beneficial. Most of the popular audio and video editing tools take advantage of multi-threaded processing. Photoshop and Design If you're a designer, a higher clock speed and more processor cache will increase speeds better than more cores. Even the most popular design software, Adobe Photoshop, largely supports single-threaded or lightly threaded processes. Multiple cores aren't going to be a significant boost with this. Should You Get More Cores? Overall, a quad-core processor is going to perform faster than a dual-core processor for general computing. Each program you open will work on its own core, so if the tasks are shared, the speeds are better. If you use a lot of programs simultaneously, switch between them often, and assign them their own tasks, then get a processor with more cores. Just know this overall system performance is one area where far too many factors come into play. Don't expect a magical boost by changing one component like the processor. Choose wisely and buy the right processor for your needs. Um processador multinúcleo ou multi core, em inglês é aquele que tem dois dual ou mais núcleos quad, hexa, octa, deca-core… de processamento dentro de um chip. Isso quer dizer que os smartphones possuem dois ou mais núcleos responsáveis por dividir as tarefas. Em processadores de um só núcleo também é possível executar várias funções ao mesmo tempo. Porém, elas podem chegar ao limite da capacidade da CPU Unidade Central de Processamento com um desempenho que vai deixar a desejar. Como funciona um processador? Parece bem óbvio, mas os processadores processam um monte de dados solicitados pelos aplicativos que você usa. Para abrir navegadores, mensageiros e jogos, o processador precisa acessar o armazenamento interno e encontrar os dados referentes ao app, levá-los até a memória RAM e trabalhar nesta troca até exibir tudo na tela. É o processador que também vai receber as informações que você mesmo cria no teclado e enviá-las ao aplicativo, num vai e vem de dados. A memória RAM, como já falamos aqui antes, tem a missão de permitir que o processador tenha acesso imediato aos dados que deseja como um meio do caminho, contribuindo para uma maior rapidez e capacidade de resposta. Quando o processador precisa fazer alguma coisa de novo, consulta dados da memória RAM. O que significa core? Como você já pode imaginar, um processador dual-core trabalha com dois núcleos, um quad-core com quatro, um hexa com seis e assim por diante… Um bom processador oferece melhor desempenho ao smartphone para que consiga realizar suas tarefas sem comprometer a performance — evitando travamento, lentidão e outras intempéries. O sistema operacional do celular, no caso do Android, por exemplo, trata cada um desses núcleos como um processador diferente. Na maioria dos casos, cada unidade possui seu próprio cache. Contudo, os dois núcleos ou mais não se somam em capacidade de processamento, o que eles fazem é dividir as demandas, tornando-as mais fáceis e rápidas. Um processador dual-core com clock de GHz não equivale, por exemplo, a um processador single-core com clock de Ghz o dobro, e sim a dois núcleos GHz operando em paralelo. Quanto maior o clock calculado em GHz melhor será o seu desempenho para executar diversos programas simultaneamente sem engasgos. Como já deve ter notado, uma série de características influenciam no desempenho do processador. O que conhecemos como “velocidade” clock é o número seguido de GHz. O que é clock? Podemos definir o clock como o volume de ações escrever e ler dados ou executar comandos que o processador pode executar por segundo. Sendo os GHz um indicador imediato da “velocidade”. Quanto mais “pulsos de clock”, mais rápida a frequência. Isso tornou-se necessário para resfriar processadores single-core com frequências cada vez mais altas em GHz e que amontoavam uma concentração cada vez maior de transistores — com o passar do tempo cada vez menores — no mesmo circuito integrado. Fazendo uma analogia bem superficial, um núcleo é um motor. Então, é natural imaginar que um deca-core com dez núcleos é o melhor para um processador rápido e potente. Entretanto, um desempenho impecável depende do motor, depende do tipo de carga que precisa levar e depende também da sua rotina de uso e esforço do motor. Quanto mais núcleos, melhor o celular? Observar só o clock não basta. Há limites para quão rápido pode ser um processador que cabe dentro de um smartphone que cabe na sua mão sem que esquente demais. A solução encontrada pelas fabricantes foi fazer chips de processadores móveis com mais de um núcleo, que funcionam como se fosse um processador independente. Assim, o número total de ações que consegue realizar por “pulso de clock” é maior. 1 o fator software 👩🏾‍💻 Os fabricantes podem fazer com que processadores usem cada núcleo para determinadas tarefas e isso permite, por exemplo, ter uma melhor autonomia de energia usando os núcleos mais lentos para tarefas simples e os núcleos mais rápidos e poderoso para tarefas complexas. É o processador que vai organizar e definir quais processos serão executados em qual dos núcleos — é comum que haja uma combinação com velocidades diferentes. É possível, ainda, que o próprio aplicativo ofereça configurações para otimizar os processos. Sendo assim, ter um processador com muitos núcleos não implica ganho velocidade substancial, pois o sistema operacional ou aplicativos podem não usar recursos com maestria. 2 a memória de cache ⏳ Aliada à memória RAM, o processador tem ainda o que chamamos de memória de cache, um pequeno espaço de armazenamento de dados absurdamente rápido que fica no próprio chip para guardar dados que precisam ser acessados com muita frequência. A forma como essa pequena memória de cache é dividida entre os núcleos do processador varia bastante em cerca de três níveis L1, L2 e L3, sendo o L1 é o mais rápido e isso pode influenciar no resultado final do desempenho de um processador mesmo com muitos núcleos anunciados em propaganda, porém subutilizados. Como avaliar o processador de um smartphone? Certamente que você vai continuar observando a velocidade em GHz na ficha técnica dos celulares, mas deve levar em consideração que comparar processadores é muito mais do que avaliar “quem tem clock maior”. De acordo com a arquitetura adotada pela fabricante isto é, a maneira como o chip é construído, seu desempenho pode variar. E, lógico, como você não é um especialista nisso, não precisa se agarrar a quesitos tão técnicos ou se aprofundar na questão da memória de cache ou de como suas aplicações trabalham com os núcleos de um processador. É para isso que existem “benchmarks”. Como isso funciona? Análise técnicas simulam o desempenho de um ou mais chips em situações leves e severas. Ao final, cada um dos processadores recebe uma pontuação com base no seu desempenho. Se você estiver em dúvida entre dois smartphones com processadores de fabricantes diferentes, por exemplo, a melhor coisa é consultar pontuações em testes. O Tecnoblog costuma divulgar comparativos entre os melhores celulares e que usam processadores com arquiteturas completamente diferentes como a Apple e a Samsung. Um bom exemplo é o comparativo entre o A10 Fusion — o primeiro chip com CPU quad-core a equipar um iPhone — com o Snapdragon 845, um chip octa-core da Qualcomm. Conforme a pontuação do Geekbench, o processador do velho iPhone 7 e iPhone 7 Plus se sai melhor que o rival presente em Androids de Sony, Xiaomi, Samsung e LG, incluindo a linha Google Pixel 3. Para deixar um pouco mais complicado, você ainda tem processadores Exynos, da Samsung, em algumas versões de aparelhos. Outro exemplo de que total em núcleos não é documento é o A12 Bionic, da Apple, que é hexa-core. Comparado ao mesmo Snapdragon 845, da Qualcomm, o A12 tem reconhecidamente mais desempenho bruto, independente de otimizações de software. Um terceiro exemplo é o Exynos 9810, um octa-core de GHz, da Samsung em comparação com o Snapdragon 805, um quad-core de 2,65 GHz, da Qualcomm. Em tese, o modelo da Qualcomm tem maior velocidade em GHz, mas era um pesadelo para os usuários pois esquentava absurdamente, revelando desempenho insatisfatório e deixando o chip de oito núcleos da sul-coreana com menor frequência em vantagem. Vale notar que, em geral, as análises só levam em consideração o desempenho do processador sozinho e não o conjunto do smartphone por completo. Uma memória RAM lenta, uma memória flash lenta ou um software mal otimizado, podem botar tudo a perder mesmo em um celular equipado com processador de vários núcleos. Sendo assim, fica a dica veja comparativos técnicos, GHz não é tudo, há mais nisso aí. Androidocta-coreProcessador multinúcleoQuad-coreinglêsCPUiPhoneQualcommSamsungiPhone 7 PlusiPhone 7AppleApple A10 FusionLG ElectronicsXiaomiSonyExynos

hexa core vs octa core