AMD Ryzen 9 3900X vs AMD Ryzen 7 5800X3D

Compare AMD Ryzen 9 Desktop 12 core CPU vs AMD Ryzen 7 Desktop 8 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
$ 169.62 significantly less expensive
$ 399.61

Benchmark Score

Overall Score

A combined score of all workloads

8422 points
14% slightly better overall score
7335 points

Gaming Score

The raw gaming performance with a fast GPU

8440 points
8938 points
5% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

8406 points
23% slightly better multitasking score
6797 points

Heavy Workload Score

Performance in workloads using up to 16 cores

8392 points
26% slightly better heavy workload score
6646 points

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900X and the Ryzen 7 5800X3D? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

8594 points
17% slightly higher 3DMark Physics score
7297 points
Blender score

Blender score

Cycles Render (Samples per minute)

276.80 points
32% slightly higher Blender score
209.61 points
Cinebench R23 score

Cinebench R23 score

Multi threaded benchmark

19000 points
32% slightly higher Cinebench R23 score
14317 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

9929 points
10897 points
9% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1667 points
2052 points
23% slightly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

9907 points
11047 points
11% slightly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1704 points
2117 points
24% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

12
49% significantly more cores
8

Threads

Number of logical processing units

24
49% significantly more threads
16

Clock Speed

Base frequency at which the chip operates

3.80 GHz
11% slightly higher clock speed
3.40 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
2% slightly higher turbo speed
4.5 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W
Identical
105 W

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L1 Cache

Smallest embedded memory, but the fastest

768 KiB
49% significantly more L1 cache
512 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
49% significantly more L2 cache
4 MiB

L3 Cache

General memory pool for all cores

64 MiB
96 MiB
49% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

130th of 1,089
172nd of 1,089

Family

The product line

Ryzen 9 Desktop
Ryzen 7 Desktop

Release date

The official date of release of this chip

2019 July
2022 April

Memory Type

The type of memory used by this chip

DDR4
DDR4

Is Unlocked

Can this CPU can be overclocked

Yes
No

Ryzen 9 3900X vs Ryzen 7 5800X3D specs and performance

Our benchmark analysis concludes that the Ryzen 9 3900X performs better than the Ryzen 7 5800X3D. Despite this, the Ryzen 7 5800X3D 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 Ryzen 7 5800X3D that has 8 cores. It also has more threads than the Ryzen 7 5800X3D. These CPUs have different clock speeds. Indeed, the Ryzen 9 3900X has a slightly higher clock speed compared to the Ryzen 7 5800X3D. Also, the Ryzen 9 3900X has a slightly higher turbo speed. Both these chips have an identical TDP (Thermal Design Power). 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 Ryzen 7 5800X3D. Despite this, the Ryzen 7 5800X3D has significantly more L3 cache compared to the Ryzen 9 3900X.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Ryzen 9 3900X has more threads than cores. Each physical core is split into multiple threads.

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