How Many CPU Cores Do You Need?

With every novel generation release from AMD or Intel, we are introduced to higher clock speeds, fresh technologies, and, sometimes, more cores.

In the last few years, following the launch of the initial batch of Ryzen processors, the number of cores in a CPU has become significantly more essential for gaming and productivity tasks than it previously was.

Before that, the most expensive consumer CPU (i7 7700K) had 4 cores and 8 threads at most. To put that in perspective, today’s $800 flagship from AMD, the 5950X, has four times more cores and threads (16 cores/32 threads) than Intel’s 7700K (4c/8t).

Do more cores make a processor better? Do we really need to pay so much to get more of them? You might be asking yourself, how many CPU cores do I actually need?

To help you answer these questions, we will explain how cores can be advantageous and where you might profit from them the most.

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Related:What Is A CPU?CPU Hierarchy 2023 – PC Processors Tier ListWhat Is CPU Cache? (L1, L2, and L3 Cache)

CPU Cores Explained

A CPU has the role of executing program instructions. This includes adding/removing data, moving data around, and much more. In the past, a CPU was only one processing unit, capable of handling one command at a time.

However, since operating systems, programs, and video games have a lot more data and provide substantially more instructions for CPUs, we now have multiple processing units in one processor. We now refer to these processing units as cores.

This means one processor can process multiple instructions at a time, which significantly increases the speed of the CPU. This allows computers to run several programs or video games concurrently.

To boost multitasking and overall efficiency, cores are separated into threads, when possible according to the operating system. This is referred to as multithreading, hyper-threading for Intel, or simultaneous multithreading (SMT) for AMD.

Essentially, this means virtual cores can be established to assist the operating system in enhancing the utilization of the CPU’s physical cores. So, how many of these cores or threads do you truly need? Let’s explore a few of the current models and core quantities.

Modern CPU Core Standards And Requirements

It’s uncommon that you can precisely select the number of cores needed, but you can opt for a CPU type that has the preferred number of cores.

If you think you will need five cores, you need to get a 6-core processor because that’s the typical. There are no 5-core CPUs as cores are always mirrored. That is why cores come in pairs: 2,4,6,8, and so on. Selling SKUs with an odd number of cores wouldn’t be economical for AMD or intel. Additionally, the thread count is almost always double the cores. A rare exception would be Intel’s Alder Lake.

We’ll display some frequent core/thread combinations and their impact on productivity, work, and gaming to assist you.

Single-Core Processors

Processors with only a single core are exceedingly uncommon these days. Even when searching through Intel’s Pentium library (their cheapest offers), we were unable to find a single-core CPU, so they probably don’t exist at all in newer generations.

This is with sound logic. Most operating systems of 2024, including Windows 10, macOS Big Sur, and Linux, run smoother on multiple cores or threads. Programs/apps can also utilize multiple processing units.

Running any program on a single-core CPU is going to be extremely frustrating. Video games are out of the question. The same applies to productivity work.

Dual-Core Processors

Dual-core CPUs are also uncommon today, but they are still present in new CPU generations such as Intel’s Pentium and i3 lineup or AMD’s Athlon APUs. CPUs with just two cores are quite outdated, and even trying to run a browser may be difficult.

Fortunately, today’s dual-core CPUs have four threads due to concurrent processing.

If the cores are rapid enough, four threads can make a user’s experience when running basic word processing programs, browsers, and some video games such as League of Legends or Counter-Strike Global Offensive far more satisfying. It is possible to run more demanding games, but the experience will likely be far less smooth.

Rendering or video encoding is also possible, but it will be lethargic.

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• Intel Pentium Gold G6405 – This will provide enough power to handle any basic task you throw at it. In terms of gaming performance, it is slower but comparable to an i3.
• AMD Athlon 3000GE – A solid choice, especially if you do not have a dedicated GPU. The integrated Vega GPU is far more powerful than Intel’s UHD.

Quad-Core Processors

Processors with 4 cores and 8 threads are significantly more prevalent than dual or single cores. Intel’s i3 lineup is full of 4-core/8-thread CPUs. Previously, i3s were all locked to 4 threads until AMD started pushing for all SKUs to have multithreading unlocked.

CPUs with 8 threads will provide a completely different experience compared to a system with four threads. You can have multiple programs running and even a game, too, without any substantial stuttering or hesitation.

Video encoding or rendering is going to be much quicker. Still, this kind of productivity work benefits greatly from additional cores, so it will definitely be slower than 8 or 12 cores.

Furthermore, people who want to build a robust gaming PC on a budget will have access to older Intel i7 generations, such as the 7700K or the 6700K, for an affordable price. Although these CPUs are a bit outdated in 2024, they are still quite competent.

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• Intel i7-7700K – Better than new generation i3s thanks to its high clocks and single-core performance, but it does show its age. We recommend the 7700K only if you manage to find a good deal. Alternatively, try to find a 6600K.
• Intel i3-10300 –  A 4c/8t i3 for less than $150 with a boost clock of 4.40GHz is an okay deal, but we recommend checking out the 6-core options first.
• Ryzen 5300G – Quicker than the two options above and with a considerably faster GPU. Unfortunately, finding this CPU might prove difficult as it can only be found in OEM systems.

Hexa-Core Processors

Hexa-core or six-core processors are today’s mid-range norm. On Steam’s Hardware Survey of August 2021, 34% of Steam users have a six-core processor. That’s still not the majority, as 40% are still on 4-cores, but that will most likely change soon.

So many people jumped to six cores because processors such as AMD’s Ryzen 5 3600 or Intel’s i5-10600K offer exceptional performance at a reasonable price. The Ryzen 3600 regularly goes on sale for less than $200, so we understand why it can be tough to pass up that offer.

Six cores or, more precisely, 12 strands are a substantial upgrade over 8 threads. Most people are content with this number of cores, and with good reason.

Most of today’s most prevalent games run exceptionally well on six cores. In fact, most games won’t show a significant improvement in FPS by jumping to 8, 10, 12, or more cores.

Effectiveness work would also be substantially quicker. Programs such as Blender, Adobe Premiere, Photoshop, and others will benefit immensely from the two additional cores.

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• Ryzen 3600/X – Undoubtedly the best value six-core processor on the market. Under normal conditions, you should be able to find this Ryzen for about $180. If you can find a good deal for the X version, get it. If not, we recommend the non-X.
• Ryzen 5600X –  Probably the fastest six-core processor as of writing, comparable in gaming performance to Intel’s and AMD’s flagships. For about $300, it is a great choice.
• Intel i5-11600K – A bit slower than the 5600X, but it is also about $40 cheaper. A no-brainer if you want to go with an Intel platform.

Octa-Core Processors

Intel and AMD are currently at the apex of their battle, constantly trading blows by pushing down prices, increasing frequency, core count, and more.

This intense competition between the two brands means that eight-core processors might steadily become significantly more affordable and perhaps even the standard in a few years. As of writing this article, Steam’s Hardware Survey shows 14.40% of users running 8-core processors.

The performance enhancement in games won’t be as perceptible when transitioning from 6 to 8 cores as it would be from 4 to 6 cores.

However, the improvement in productivity work is substantial. For anyone looking to work on their computer but also wanting to game, 8-core processors are the way to go.

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• Intel i7-10700K/11700K – These two processors are almost identical in performance, so get whichever one offers better value. One of the fastest CPUs on the market right now, but very power-hungry and has disappointing thermals.
• Ryzen 5800X –  $50 more expensive than the 11700K, but it is currently the fastest 8-core CPU, and it is far less power-hungry.
• Ryzen 3700X – Not in the same boat as the 5800X or 11700K in terms of gaming performance, but you can grab one for $100 less. It’s still fast and is great for productivity work. If you are building a PC on a budget, definitely choose this.

Even More Cores

If you are not restricted by a budget or want the top possible performance in productivity, there are consumer CPUs with far more cores.

If finances are not an issue, we highly suggest considering AMD’s $800 Ryzen 5950X. This 16c/32t processor will effectively handle rendering tasks and deliver outstanding FPS in games compared to the previously mentioned CPUs.

Alternatively, go for the Ryzen 5900X(12c/24t). It is $250 less costly, it is just as rapid, and it only loses 4 cores.

An Intel alternative would be the i9-10980XE which is an 18c/36t, but it is not as swift and will set you back $1000.

Getting The Right Amount Of CPU Cores

With the thorough explanation of CPU cores above and our CPU recommendations, you should be able to determine which model to select.

If you still cannot decide how many cores you need, here are a few factors you should consider to make the entire process much simpler:

• What will you be using your computer for?
• How much time will you spend working?
• How long will you be gaming?
• Will you be playing competitive or graphically demanding video games?
• Will you be doing any productivity work such as rendering, encoding, etc.?

With these questions resolved, you should be able to choose the right CPU for your needs.