AMD Ryzen 9 5900X vs Intel Core i9-12900K

Compare AMD Ryzen 9 Desktop 12 core CPU vs Intel 12th Generation Core i9 16 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

Quickly search and compare processors


The cheapest price from our partner retailers

$ 341.99
$ 240.99 significantly less expensive
$ 582.98

Benchmark Score

Overall Score

A combined score of all workloads

100 %
134 %
34% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

100 %
144 %
44% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

100 %
131 %
31% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

100 %
131 %
31% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 5900X and the Core i9-12900K? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Geekbench (multi) score

Multi threaded benchmark

24% slightly higher Geekbench (multi) score
Geekbench (single) score

Geekbench (single) score

Single threaded benchmark

18% slightly higher Geekbench (single) score
Cinebench R23 score

Cinebench R23 score

Multi threaded benchmark

30% slightly higher Cinebench R23 score
3DMark Physics score

3DMark Physics score

Physics simulation benchmark

39% slightly higher 3DMark Physics score



Number of physical processing units

33% slightly more cores


Number of logical processing units


Clock Speed

Base frequency at which the chip operates

3.7 GHz
15% slightly higher clock speed
3.2 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.8 GHz
5.2 GHz
8% slightly higher turbo speed


Thermal Design Power: Measure of heat generated by the CPU

105 W
129% significantly lower TDP
241 W

L1 Cache

Smallest embedded memory, but the fastest

768 KiB
1280 KiB
66% significantly more L1 cache

L3 Cache

General memory pool for all cores

64 MiB
113% significantly more L3 cache
30 MiB

Other details


Ranking in the hardwareDB database

21st of 1,219
7th of 1,219


The product line

Ryzen 9 Desktop
12th Generation Core i9

Release date

The official date of release of this chip

May 2020
November 2021

Memory Type

The type of memory used by this chip


Is Unlocked

Can this CPU can be overclocked


Supports ECC memory

Does this CPU support error correcting memory


Ryzen 9 5900X vs Core i9-12900K benchmarks

According to the hardwareDB Benchmark tool, the Core i9-12900K is faster than the Ryzen 9 5900X. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 5900X in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i9-12900K has slightly more cores than the Ryzen 9 5900X. Indeed, the Core i9-12900K has 16 cores compared to 12 cores found in the Ryzen 9 5900X. But they both have the same number of threads. Our comparison shows that the Ryzen 9 5900X has a slightly higher clock speed compared to the Core i9-12900K. Despite this, the Core i9-12900K has a slightly higher turbo speed. A Ryzen 9 5900X CPU outputs less heat than a Core i9-12900K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. Indeed, the Ryzen 9 5900X has more threads than cores. Each physical core is split into multiple threads.


No comments yet! Be the first to leave a comment using the form below.

Keep comments on topic and be polite. Comments are subject to moderation before they are published.

Popular CPU Comparisons