AMD Ryzen 9 3900X vs Intel Core i9-10900KF

Compare AMD Ryzen 9 Desktop 12 core CPU vs Intel 10th Generation Core i9 10 core processor, specs and benchmark score. Which is the better CPU for gaming?

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The cheapest price from our partner retailers

$ 499.99
$ 434.24
$ 65.75 slightly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

83 %
91 %
9% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

84 %
101 %
20% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

83 %
88 %
6% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

83 %
87 %
4% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900X and the Core i9-10900KF? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

14% slightly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

20% slightly higher Blender score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

3% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

6% slightly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

6% slightly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

5% slightly higher Geekbench 6 (single) score



Number of physical processing units

20% slightly more cores


Number of logical processing units

20% slightly more threads

Clock Speed

Base frequency at which the chip operates

3.80 GHz
2% slightly higher clock speed
3.7 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
5.3 GHz
15% 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
20% slightly more L1 cache
640 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
139% significantly more L2 cache
2.5 MiB

L3 Cache

General memory pool for all cores

64 MiB
220% significantly more L3 cache
20 MiB

Other details


Ranking in the hardwareDB database

37th of 622
25th of 622


The product line

Ryzen 9 Desktop
10th Generation Core i9

Release date

The official date of release of this chip

July 2019
May 2020

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 i9-10900KF benchmarks

According to the hardwareDB Benchmark tool, the Core i9-10900KF is faster than the Ryzen 9 3900X. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 3900X in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Ryzen 9 3900X has slightly more cores than the Core i9-10900KF. Indeed, the Ryzen 9 3900X has 12 cores compared to 10 cores found in the Core i9-10900KF. It also has more threads than the Core i9-10900KF. These CPUs have different clock speeds. Indeed, the Ryzen 9 3900X has a slightly higher clock speed compared to the Core i9-10900KF. Despite this, the Core i9-10900KF has a slightly higher turbo speed. A Ryzen 9 3900X CPU outputs less heat than a Core i9-10900KF CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Ryzen 9 3900X has more L2 cache than the Core i9-10900KF. The Ryzen 9 3900X also has significantly more L3 cache.

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 3900X has more threads than cores. Each physical core is split into multiple threads.


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