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Gaming Performance Comparison

Recommended System Requirements
Game Core i7-6800K 6-Core 3.4GHz FX-6350
Red Dead Redemption 2 26% 52%
Call of Duty: Modern Warfare 45% 13%
Fortnite: Chapter 2 60% 16%
Cyberpunk 2077 38% 29%
FIFA 20 47% 9%
Need For Speed Heat 38% 29%
The Outer Worlds 20% 65%
Borderlands 3 26% 52%
Zombieland: Double Tap - Road Trip 26% 52%
Star Wars: Jedi - Fallen Order 19% 68%

In terms of overall gaming performance, the Intel Core i7-6800K 6-Core 3.4GHz is massively better than the AMD FX-6350 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 Core i7-6800K 6-Core was released over three years more recently than the FX-6350, and so the Core i7-6800K 6-Core is likely to have far better levels of support, and will be much more optimized and ultimately superior to the FX-6350 when 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 Core i7-6800K 6-Core and the FX-6350 both have 6 cores, which is not likely to be a limiting factor for gaming.

The Core i7-6800K 6-Core has 6 more threads than the FX-6350. The FX-6350 has one thread per physical core, whereas the Core i7-6800K 6-Core uses hyperthreading and has 2 logical threads per physical core.

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 Core i7-6800K 6-Core and FX-6350 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 FX-6350 has a 0.5 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 .

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 FX-6350 has a 4608 KB bigger L2 cache than the Core i7-6800K 6-Core, but on the other hand, it is the Core i7-6800K 6-Core that has a 7 MB bigger L3 cache than the FX-6350. In this case, the L2 size is probably what counts, so the FX-6350 is likely superior in this area.

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 FX-6350 has a 15 Watt lower Maximum TDP than the Core i7-6800K 6-Core. However, the Core i7-6800K 6-Core was created with a 18 nm smaller manufacturing technology. Overall, by taking both into account, the Core i7-6800K 6-Core is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameBroadwell-EVishera
MoBo SocketLGA 2011/Socket RSocket AM3+
Notebook CPUnono
Release Date01 Jun 201601 Oct 2012
CPU LinkGD LinkGD Link

CPU Technical Specifications

CPU Cores6vs6
CPU Threads12vs6
Clock Speed3.4 GHzvs3.9 GHz
Turbo Frequency3.6 GHzvs4.2 GHz
Max TDP140 Wvs125 W
Lithography14 nmvs32 nm
Bit Width64 Bitvs64 Bit
Max Temperature105°Cvs-
Virtualization Technologynovsno

CPU Cache and Memory

L1 Cache Size384 KBvs288 KB
L2 Cache Size1536 KBvs6144 KB
L3 Cache Size15 MBvs8 MB
Max Memory Size-vs-
Memory Channels-vs2
ECC Memory Supportnovsno

CPU Graphics

Base GPU Frequency-vs-
Max GPU Frequency-vs-
Displays Supported-vs-

CPU Package and Version Specifications

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

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewCore i7-6800K 6-Core 3.4GHz is an Enthusiast Processor based on the 14nm, Broadwell MicroArchitecture.

It offers 6 Physical Cores (12 Logical), initially clocked at 3.4GHz, which may go up to 3.6GHz and 15MB 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 DOES NOT Integrated any Graphics and has a rated board TDP of 140W.

Performance not known yet.
FX-6350 is a high-end CPU based on the 32nm Bulldozer architecture.

It offers 6 Physical Cores (6 Logical), initially clocked at 3.9GHz, which may go up to 4.2GHz and 8MB of L3 Cache.
Among its many features, Turbo Core and Virtualization are activated and the clock multiplier is unlocked, meaning it can be overclocked easily.

The processor DOES NOT integrated any graphics. and has a rated board TDP of 125W.

It is a powerful Hexa Core whose performance is good. It's thus capable of running most applications smoothly without any problem.