AMD Ryzen 9 3900X vs AMD Ryzen 9 7900X

Compare AMD Ryzen 9 Desktop 12 core CPU vs AMD Ryzen 9 Desktop 12 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Price

The cheapest price from our partner retailers

$ 229.99
$ 84.50 significantly less expensive
$ 314.49

Benchmark Score

Overall Score

A combined score of all workloads

8422 points
13554 points
60% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

8440 points
13457 points
59% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

8406 points
13583 points
61% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

8392 points
13587 points
61% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900X and the Ryzen 9 7900X? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

8594 points
12798 points
48% significantly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

276.80 points
412.82 points
49% significantly higher Blender score
Cinebench R23 score

Cinebench R23 score

Multi threaded benchmark

19000 points
29628 points
55% significantly higher Cinebench R23 score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

9929 points
17426 points
75% significantly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1667 points
2844 points
70% significantly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

9907 points
17750 points
79% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1704 points
2946 points
72% significantly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

12
Identical
12

Threads

Number of logical processing units

24
Identical
24

Clock Speed

Base frequency at which the chip operates

3.80 GHz
4.7 GHz
23% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
5.6 GHz
21% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W
61% significantly lower TDP
170 W

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L1 Cache

Smallest embedded memory, but the fastest

768 KiB
Identical
768 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
12 MiB
100% significantly more L2 cache

L3 Cache

General memory pool for all cores

64 MiB
Identical
64 MiB

Other details

Rank

Ranking in the hardwareDB database

130th of 1,089
36th of 1,089

Family

The product line

Ryzen 9 Desktop
Ryzen 9 Desktop

Release date

The official date of release of this chip

2019 July
2022 September

Memory Type

The type of memory used by this chip

DDR4
DDR5

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Supports ECC memory

Does this CPU support error correcting memory

-
Yes

Ryzen 9 3900X vs Ryzen 9 7900X comparison

In our benchmarks, the Ryzen 9 7900X beats the Ryzen 9 3900X in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 3900X in all gaming tests too.

When comparing these CPUs we notice that they have the same number of cores and the same number of threads. With our hardware info, we find that the Ryzen 9 7900X has a slightly higher clock speed than the Ryzen 9 3900X. Also, the Ryzen 9 7900X has a slightly higher turbo speed. A Ryzen 9 3900X CPU outputs less heat than a Ryzen 9 7900X CPU because of its significantly 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 7900X has more L2 cache than the Ryzen 9 3900X. However, both these chips have the same amount of 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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