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Gaming Performance Comparison

Recommended System Requirements
Game Ryzen 7 3700X 8-Core 3.6GHz Core i9-9900K 8-Core 3.6GHz
Red Dead Redemption 2 47% 43%
Call of Duty: Modern Warfare 60% 57%
Halo: Reach 78% 76%
Star Wars: Jedi - Fallen Order 41% 37%
Cyberpunk 2077 55% 51%
Borderlands 3 47% 43%
FIFA 20 62% 59%
Halo: The Master Chief Collection 47% 43%
eFootball PES 2020 56% 53%
Detroit: Become Human 54% 51%

In terms of overall gaming performance, the AMD Ryzen 7 3700X 8-Core 3.6GHz is massively better than the Intel Core i9-9900K 8-Core 3.6GHz 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 7 3700X was released less than a year after the Core i9-9900K 8-Core, and so they are likely to have similar levels of support, and similarly optimized performance 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 Ryzen 7 3700X and the Core i9-9900K 8-Core 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.

Both the AMD Ryzen 7 3700X 8-Core 3.6GHz and the Intel Core i9-9900K 8-Core 3.6GHz have the same number of threads. Both the Ryzen 7 3700X and the Core i9-9900K 8-Core use hyperthreading. The Ryzen 7 3700X has 2 logical threads per physical core and the Core i9-9900K 8-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 7 3700X and Core i9-9900K 8-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 Ryzen 7 3700X and the Core i9-9900K 8-Core both have the same clock frequency, this is by no means an indicator that the two CPUs will provide the same level of performance. As such, we need to look elsewhere for more reliable comparisons.

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 7 3700X has a 2048 KB bigger L2 cache than the Core i9-9900K 8-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 Ryzen 7 3700X has a 30 Watt lower Maximum TDP than the Core i9-9900K 8-Core, and was created with a 7 nm smaller manufacturing technology. What this means is the Ryzen 7 3700X will consume significantly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill significantly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

CPU Core Details

CPU CodenameZen 2Coffee Lake
MoBo SocketSocket AM4LGA 1151
Notebook CPUnono
Release Date07 Jul 201930 Oct 2018
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores8vs8
CPU Threads16vs16
Clock Speed3.6 GHzvs3.6 GHz
Turbo Frequency4.4 GHzvs5 GHz
Max TDP65 Wvs95 W
Lithography7 nmvs14 nm
Bit Width64 Bitvs64 Bit
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size512 KBvs512 KB
L2 Cache Size4096 KBvs2048 KB
L3 Cache Size32 MBvs16 MB
Max Memory Size-vs64 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

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Comparison

CPU Package and Version Specifications

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Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Ryzen 7 3700X 8-Core 3.6GHz is a high-end CPU based on AMD's 7nm Zen 2 microarchitecture. It offers 8 physical cores (16 logical), initially clocked at 3.6GHz, which may go up to 4.4GHz using Precision Boost. It has an unlocked multiplier, therefore, it can be overclocked using traditional methods. As an AMD 'X' CPU, the Ryzen 5 3700X can use eXtended Frequency Range (XFR) for automated overclocking. It has 32MB of L3 Cache. Level 3 cache is a static memory bank of a processor and it is used to feed it instructions. This processor also supports DDR4 based RAMs with maximum memory support of 64GB. It has a maximum Thermal Power Design of 65W. It is power efficient compared to competitor processors. Among its many features are Simultaneous Multithreading, Cool n Quiet, CoolCore Technology, Extended Frequency Range (XFR), Pure Power and Precision Boost are enabled.The Core i9-9900K 8-Core 3.6GHz is a top-end CPU based on a refinement of the 14nm++ Coffee Lake microarchitecture. It offers 8 physical cores (16 logical), initially clocked at 3.6GHz, which may go up to 4.7GHz using 8 cores with Turbo Boost, or up to 5.0GHz boost clock on a single or dual core. The i9-9900K has 16MB of L3 Cache. Among its many features, HyperThreading, Turbo Boost 2.0 and Virtualization are activated and the processor has its multiplier unlocked. This Core i9-9900K CPU offers the fastest gaming performance of any Intel CPU as of 2018, and will not be the bottleneck in any modern gaming PC. It will be able to play all modern games comfortably on ultra graphics performance at any supported resolution without being a hindrance to the accompanying GPU.

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