AMD Ryzen 9 3900X vs Intel Core i5-11600K

Compare AMD Ryzen 9 Desktop 12 core CPU vs Intel 11th Generation Core i5 6 core processor, specs and benchmark score. Which is the better CPU for gaming?

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The cheapest price from our partner retailers

$ 533.49
$ 250.74
$ 282.75 significantly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

83 %
25% slightly better overall score
66 %

Gaming Score

The raw gaming performance with a fast GPU

83 %
94 %
13% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

82 %
43% significantly better multitasking score
57 %

Heavy Workload Score

Performance in workloads using up to 16 cores

82 %
49% significantly better heavy workload score
55 %

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900X and the Core i5-11600K? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Geekbench (multi) score

Multi threaded benchmark

48% significantly higher Geekbench (multi) score
Geekbench (single) score

Geekbench (single) score

Single threaded benchmark

30% slightly higher Geekbench (single) score
Cinebench R23 score

Cinebench R23 score

Multi threaded benchmark

67% significantly higher Cinebench R23 score
3DMark Physics score

3DMark Physics score

Physics simulation benchmark

31% slightly higher 3DMark Physics score



Number of physical processing units

100% significantly more cores


Number of logical processing units

100% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.80 GHz
3.9 GHz
2% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
4.9 GHz
6% slightly higher turbo speed


Thermal Design Power: Measure of heat generated by the CPU

105 W
19% slightly lower TDP
125 W

Memory Channels

Lanes for simultaneous memory access


L1 Cache

Smallest embedded memory, but the fastest

768 KiB
60% significantly more L1 cache
480 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
300% significantly more L2 cache
1.5 MiB

L3 Cache

General memory pool for all cores

64 MiB
433% significantly more L3 cache
12 MiB

Other details


Ranking in the hardwareDB database

41st of 1,219
92nd of 1,219


The product line

Ryzen 9 Desktop
11th Generation Core i5

Release date

The official date of release of this chip

July 2019
February 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 3900X vs Core i5-11600K comparison

In our benchmarks, the Ryzen 9 3900X beats the Core i5-11600K in overall performance. Despite this, the Core i5-11600K has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Ryzen 9 3900X has significantly more cores with 12 cores compared to the Core i5-11600K that has 6 cores. It also has more threads than the Core i5-11600K. Our comparison shows that the Core i5-11600K has a slightly higher clock speed compared to the Ryzen 9 3900X. Also, the Core i5-11600K has a slightly higher turbo speed. A Ryzen 9 3900X CPU outputs less heat than a Core i5-11600K CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, the Ryzen 9 3900X has significantly more L2 cache when compared to the Core i5-11600K. The Ryzen 9 3900X also has significantly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Ryzen 9 3900X has more threads than cores. Each physical core is split into multiple threads.


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