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Gaming Performance Comparison

Recommended System Requirements
Game Core i7-7820X 8-Core 3.6GHz FX-9590
Cyberpunk 2077 52% 28%
Hitman 3 36% 3%
Assassins Creed: Valhalla 36% 3%
The Medium 18% 24%
Resident Evil 8 47% 20%
FIFA 21 56% 32%
Call of Duty: Black Ops Cold War 54% 30%
Grand Theft Auto VI 22% 19%
Genshin Impact 64% 45%
Far Cry 6 25% 14%

In terms of overall gaming performance, the Intel Core i7-7820X 8-Core 3.6GHz is massively better than the AMD FX-9590 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 i7-7820X 8-Core was released over three years more recently than the FX-9590, and so the Core i7-7820X 8-Core is likely to have far better levels of support, and will be much more optimized and ultimately superior to the FX-9590 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 i7-7820X 8-Core and the FX-9590 both have 8 cores. Games are not yet able to harness this many cores, so it is probably excessive if you mean to just run the latest games; however, if you intend on running a server with this CPU, it would seem to be a decent choice.

The Core i7-7820X 8-Core has 8 more threads than the FX-9590. The FX-9590 has one thread per physical core, whereas the Core i7-7820X 8-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 i7-7820X 8-Core and FX-9590 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-9590 has a 1.1 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 probably a good indicator that the is superior.

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 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 i7-7820X 8-Core has a 80 Watt lower Maximum TDP than the FX-9590. However, the FX-9590 was created with a 14 nm smaller manufacturing technology. Overall, by taking both into account, the Core i7-7820X 8-Core and the FX-9590 would appear to produce roughly the same amount of heat, and consume about the same amount of power.

CPU Core Details

CPU CodenameSkylake-X-
MoBo SocketSocket 2066Socket AM3+
Notebook CPUnono
Release Date19 Jun 201711 Jun 2013
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores8vs8
CPU Threads16vs8
Clock Speed3.6 GHzvs4.7 GHz
Turbo Frequency4.5 GHzvs5 GHz
Max TDP140 Wvs220 W
Lithography14 nmvs-
Bit Width64 Bitvs64 Bit
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size-vs-
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L3 Cache Size11 MBvs8 MB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphics
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Displays Supported-vs-
Comparison

CPU Package and Version Specifications

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Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Intel Core i7-7820X 8-Core 3.6GHz is a high-end CPU based on the 14nm, Skylake-X micro architecture. It offers 8 physical cores (16 logical), initially clocked at 3.6GHz, which may go up to 4.5GHz with boost, and 11MB of L3 Cache. Among its many features, Turbo Boost 3.0 and Virtualization are activated and the processor has its multiplier unlocked. With a 140W TDP, the Core i7-7820X octa-core is relatively power hungry. This CPU is likely to offer exceptional computational performance and will not be the bottlenecked in any modern gaming PC. It will be able to play all AAA titles.FX-9590 is a high-end CPU based on the 32nm Piledriver architecture.

It offers 8 Physical Cores (8 Logical), initially clocked at 4.7GHz, which may go up to 5.0GHz 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 have any integrated graphics, and has a rated board TDP of 220W.

Compared to its predecessor FX-8350 there's an overall 12% performance boost. Its performance is exceptionally good and enough for even the most demanding applications.