6-Core vs 8-Core CPU: Which is Better in Gaming?

Which is better for gaming? 6-Core vs 8-Core CPU? Find out if two extra cores in your CPU can make a big difference in gaming performance.

Picture of AMD Ryzen 5 9600X vs Ryzen 7 9700X
AMD Ryzen 5 9600X vs Ryzen 7 9700X (Image via AMD)

One of the debates we often see on the internet is 6-Core vs 8-Core CPU. Some say six cores are still more than enough for gaming, while others argue that having eight cores is better and also future-proof. The question is, who’s right? And will two extra cores in your CPU make a big difference in gaming? Let’s find out in this detailed assessment with proper benchmarks.

Note: Parts of this article are subjective and reflect the writer’s opinions.

6-Core vs 8-Core CPU: Detailed Comparison

Picture of an AMD Ryzen chip
An AMD Ryzen chip (Image via AMD)

Testing performance differences between a 6-Core vs an 8-Core CPU is difficult, as there can be so many variables at play. To have an accurate apples-to-apples comparison, we need to have as few variables as possible. Therefore, we cannot test processors from different vendors or even generations.

Keeping that in mind, we chose Ryzen 5 9600X and Ryzen 7 9700X for testing. They are from the same generation, vendor, and even architecture. The only significant differences between them are the core count and clock speed. However, the latter is only 100MHz, so it’s a minor difference. The Ryzen 5 9600X has six cores, and the Ryzen 7 9700X has eight, making them the perfect candidates for our testing.

Specs Comparison

Here are the specs of the Ryzen 5 9600X and Ryzen 7 9700X:

SpecificationsRyzen 5 9600XRyzen 7 9700X
ArchitectureZen 5Zen 5
Core/Thread count6/128/16
Max clock speed5.4 GHz5.5 GHz
L3 cache32 MB32 MB
RAM supportDDR5-5600DDR5-5600
PCIe Gen supportGen 5Gen 5
Platform SocketAM5AM5
Thermal design power (TDP)65W Typical | 88W Max
Extended 105W Typical | 142W Max
65W Typical | 88W Max
Extended 105W Typical | 142W Max
Manufacturing nodes4nm, 6nm4nm, 6nm

As you can see, there are no practical differences between the Ryzen 5 9600X and Ryzen 7 9700X, except for core count and clock speed. Even the power fed to both processors is exactly the same. This makes an apples-to-apples performance comparison quite possible.

Synthetic Performance Comparison

It’s time we put the specs aside and look at the actual performance comparison between the two CPUs. Here’s how the Ryzen 5 9600X and Ryzen 7 9700X perform in popular synthetic benchmarks:

BenchmarksRyzen 5 9600XRyzen 7 9700X
Cinebench R23 (Single-Core)21542213
Cinebench R23 (Multi-Core)1744720228
Geekbench 6 (Single-Core)33343331
Geekbench 6 (Multi-Core)1503117511
Passmark CPU (Single-Core)45684655
Passmark CPU (Multi-Core)3001437165

The 8-core Ryzen 7 9700X is only around 1.4% faster than the Ryzen 5 9600X in single-core benchmarks. However, the former is about 20% faster than the latter in multi-core benchmarks. Therefore, the 8-core is obviously better in productivity, which we already expected. However, our goal is to test whether there is a performance advantage in buying an 8-core CPU over a 6-core CPU in gaming, which you will find below.

Game Performance Comparison

Here’s how the Ryzen 5 9600X and Ryzen 7 9700X handle some of the popular games on the market:

GamesRyzen 5 9600XRyzen 7 9700X
S.T.A.L.K.E.R. 279 FPS86 FPS
Cyberpunk 207799 FPS116 FPS
Hogwarts Legacy71 FPS75 FPS
Ghost of Tsushima178 FPS189 FPS
Starfield93 FPS112 FPS
Forza Horizon 5253 FPS255 FPS
The Witcher 385 FPS96 FPS

Note: The two CPUs were tested at 1080p resolution with the RTX 4090 GPU. All FPS numbers were sourced from the Hardware Tested channel on YouTube.

On average, the 8-core Ryzen 7 9700X was able to extract 8.2% more FPS over the Ryzen 5 9600X. However, even this 8.2% performance difference was due to the RTX 4090. Mid-range chips will always have bottlenecks with flagship GPUs like the Nvidia RTX 4090 or 5090.

Even higher-end 16-core Ryzen 9 9950X struggles with those graphics cards. Only the Ryzen 7 9800X3D or other X3D CPUs can properly handle those flagship GPUs. This is why you see an 8.2% performance difference.

When the Ryzen 5 9600X and Ryzen 7 9700X are configured with a high-end GPU, such as Radeon RX 9700 XT or lower, instead of a flagship card like RTX 4090, the performance difference will be negligible.

Picture describes that the Ryzen 7000, 8000, and 9000 series feature a new IHS
The Ryzen 7000, 8000, and 9000 series feature a new IHS (Image via AMD)

Final Verdict on 6-Core vs 8-Core CPU

The 8-core Ryzen 7 9700X did deliver 8.2% more FPS than the 6-core Ryzen 5 9600X when paired with a flagship GPU like Nvidia RTX 4090. However, the performance difference will be much lower when these CPUs are paired with mid-range graphics cards like Nvidia RTX 4070 or even high-end GPUs like Radeon RX 9070 XT.

Therefore, the 6-core CPUs are still fine for modern games. However, that doesn’t mean all 6-core processors are fine. You need a modern 6-core CPU, such as Intel Core i5 12400F and newer or AMD Ryzen 5 5600 and newer. These 6-core CPUs should be more than fine for modern gaming or modern GPUs. However, if you want gaming and productivity, then an 8-core processor would be the better choice.

However, for strictly gaming, Modern CPUs with six cores and above are fine. The difference between 6-Core and 8-Core processors is almost negligible. The core count of a processor is not the most important spec for gaming.

Instead, specifications, such as clock speed and cache, are more important. This is why X3D CPUs with significantly higher L3 cache deliver the top-class gaming performance. Even the Ryzen 5 9600X3D would outperform any 8 or even 12-core CPU.


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