9.9
Check Prices $229
9.3
Check Prices $350
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Gaming Performance Comparison

Recommended System Requirements
Game Ryzen 5 2600X 6-Core 3.6GHz Core i7-6700K 4-Core 4.0GHz
Red Dead Redemption 2 31% 9%
Call of Duty: Modern Warfare 49% 33%
Zombieland: Double Tap - Road Trip 31% 9%
Cyberpunk 2077 41% 23%
Microsoft Flight Simulator 25% 2%
Borderlands 3 31% 9%
The Outer Worlds 39% 21%
FIFA 20 50% 35%
Fortnite: Chapter 2 62% 50%
eFootball PES 2020 43% 26%

In terms of overall gaming performance, the AMD Ryzen 5 2600X 6-Core 3.6GHz is massively better than the Intel Core i7-6700K 4-Core 4.0GHz when it comes to running the latest games. This also means it will be less likely to bottleneck more powerful GPUs, allowing them to achieve more of their gaming performance potential.

The Ryzen 5 2600X was released over a year more recently than the Core i7-6700K 4-Core, and so the Ryzen 5 2600X is likely to have better levels of support, and will be more optimized for running the latest games.

Both CPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings (assuming they are accompanied by equivalently powerful GPUs).

The Ryzen 5 2600X has 2 more cores than the Core i7-6700K 4-Core. 6 cores is probably excessive if you mean to just run the latest games, as games are not yet able to harness this many cores. The cores in the Core i7-6700K 4-Core is more than enough for gaming purposes.

The Ryzen 5 2600X has 4 more threads than the Core i7-6700K 4-Core. Both the Ryzen 5 2600X and the Core i7-6700K 4-Core use hyperthreading. The Ryzen 5 2600X has 2 logical threads per physical core and the Core i7-6700K 4-Core has 2.

Multiple threads are useful for improving the performance of multi-threaded applications. Additional cores and their accompanying thread will always be beneficial for multi-threaded applications. Hyperthreading will be beneficial for applications optimized for it, but it may slow others down. For games, the number of threads is largely irrelevant, as long as you have at least 2 cores (preferably 4), and hyperthreading can sometimes even hit performance.

More important for gaming than the number of cores and threads is the clock rate. Problematically, unless the two CPUs are from the same family, this can only serve as a general guide and nothing like an exact comparison, because the clock cycles per instruction (CPI) will vary so much.

The Ryzen 5 2600X and Core i7-6700K 4-Core are not from the same family of CPUs, so their clock speeds are by no means directly comparable. Bear in mind, then, that while the Core i7-6700K 4-Core has a 0.4 GHz faster frequency, this is not always an indicator that it will be superior in performance, despite frequency being crucial when trying to avoid GPU bottlenecking. In this case, however, the difference is enough that it possibly indicates the superiority of the Ryzen 5 2600X.

Aside from the clock rate, the next-most important CPU features for PC game performance are L2 and L3 cache size. Faster than RAM, the more cache available, the more data that can be stored for lightning-fast retrieval. L1 Cache is not usually an issue anymore for gaming, with most high-end CPUs eking out about the same L1 performance, and L2 is more important than L3 - but L3 is still important if you want to reach the highest levels of performance. Bear in mind that although it is better to have a larger cache, the larger it is, the higher the latency, so a balance has to be struck.

The Ryzen 5 2600X has a 2048 KB bigger L2 cache than the Core i7-6700K 4-Core, which means that it, at worst, wins out in this area, and at best, will provide superior gaming performance and will work much better with high-end graphics cards.

The maximum Thermal Design Power is the power in Watts that the CPU will consume in the worst case scenario. The lithography is the semiconductor manufacturing technology being used to create the CPU - the smaller this is, the more transistors that can be fit into the CPU, and the closer the connections. For both the lithography and the TDP, it is the lower the better, because a lower number means a lower amount of power is necessary to run the CPU, and consequently a lower amount of heat is produced.

The Core i7-6700K 4-Core has a 4 Watt lower Maximum TDP than the Ryzen 5 2600X. However, the Ryzen 5 2600X was created with a 2 nm smaller manufacturing technology. Overall, by taking both into account, the Ryzen 5 2600X and the Core i7-6700K 4-Core would appear to produce roughly the same amount of heat, and consume about the same amount of power.

The Core i7-6700K 4-Core has an on-board GPU, which means that it will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card. The Ryzen 5 2600X, however, does not, and you will probably have to look for a dedicated card if you wish to use it at all.

For in-depth GPU comparisons with the HD i7 6700K, click on the following GPU overview comparison icon (visible throughout Game-Debate), and choose a GPU from the list to compare against:

On-board GPUs tend to be fairly awful in comparison to dedicated cards from the likes of AMD or Nvidia, but as they are built into the CPU, they also tend to be cheaper and require far less power to run (this makes them a good choice for laptops). We would recommend a dedicated card for running the latest games, but integrated GPUs are improving all the time and casual gamers may find less recent games perform perfectly acceptably.

CPU Core Details

CPU CodenameZen+Skylake-S
MoBo SocketSocket AM4LGA 1151
Notebook CPUnono
Release Date19 Apr 201805 Aug 2015
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores6vs4
CPU Threads12vs8
Clock Speed3.6 GHzvs4 GHz
Turbo Frequency4.2 GHzvs4.2 GHz
Max TDP95 Wvs91 W
Lithography12 nmvs14 nm
Bit Width54 Bitvs64 Bit
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size-vs256 KB
L2 Cache Size3072 KBvs1024 KB
L3 Cache Size16 MBvs8 MB
Max Memory Size-vs32 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsHD i7 6700K
Base GPU Frequency-vs350 MHz
Max GPU Frequency-vs1150 MHz
DirectX-vs12.0
Displays Supported-vs-
Comparison

CPU Package and Version Specifications

Package Size-vs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Ryzen 5 2600X 6-Core 3.6GHz is a mid to high-range CPU based on AMD's 12nm Zen+ microarchitecture. It offers 6 physical cores (12 logical), initially clocked at 3.6GHz, which may go up to 4.2GHz using Turbo Boost. It has an unlocked multiplier, therefore, it can be overclocked using traditional methods. It has 16MB of L3 Cache. Level 3 cache is a static memory bank of a processor and it is used to feed it instructions. It has 3MB of L2 cache, 512KB per core. This processor also supports DDR4 based RAMs with maximum memory support of 64GB. It has a maximum Thermal Power Design of 95W. It is on par with competitor processors. Among its many features, Simultaneous Multithreading, Cool n Quiet, CoolCore Technology, Extended Frequency Range (XFX), Pure Power and Precision Boost are enabled. This CPU is likely to offer excellent computational performance and will not be the bottleneck in any modern gaming PC.Core i7-6700K 4-Core 4.0GHz is a high-end CPU based on the 14nm, Skylake MicroArchitecture.

It offers 4 Physical Cores (8 Logical), initially clocked at 4.0GHz, which may go up to 4.2GHz and 8MB of L3 Cache.
Among its many features, HyperThreading, Turbo Boost 2.0 and Virtualization are activated and the processor has its multiplier unlocked.

The processor integrates Powerful Graphics called HD i7 6700K, with 24 Execution Units, initially clocked at 350MHz and that go up to 1150MHz, in Turbo Mode which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 91W.

Its performance is exceptionally good and enough for even the most demanding applications.

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