AMD Ryzen 9 3900X vs AMD Ryzen 7 5800

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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Benchmark Score

Overall Score

A combined score of all workloads

8422 points
16% slightly better overall score
7246 points

Gaming Score

The raw gaming performance with a fast GPU

8440 points
9033 points
7% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

8406 points
25% slightly better multitasking score
6679 points

Heavy Workload Score

Performance in workloads using up to 16 cores

8392 points
28% slightly better heavy workload score
6542 points

Free CPU Benchmark

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

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

8594 points
20% slightly higher 3DMark Physics score
7120 points
Blender score

Blender score

Cycles Render (Samples per minute)

276.80 points
44% significantly higher Blender score
191.07 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

9929 points
7% slightly higher Geekbench 5 (multi) score
9217 points
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1667 points
2067 points
23% slightly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

9907 points
13% slightly higher Geekbench 6 (multi) score
8758 points
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1704 points
2080 points
22% 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
3.4 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
Identical
4.6 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W
65 W
61% significantly lower TDP

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
100% significantly more L3 cache
32 MiB

Other details

Rank

Ranking in the hardwareDB database

130th of 1,089
175th 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
2021 December

Memory Type

The type of memory used by this chip

DDR4
DDR4

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Ryzen 9 3900X vs Ryzen 7 5800 comparison

According to the hardwareDB Benchmark tool, the Ryzen 9 3900X is faster than the Ryzen 7 5800. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 7 5800 in all gaming tests too.

With info from our database, we find that the Ryzen 9 3900X has significantly more cores with 12 cores whereas the Ryzen 7 5800 has 8 cores. It also has more threads than the Ryzen 7 5800. Our comparison shows that the Ryzen 9 3900X has a slightly higher clock speed compared to the Ryzen 7 5800. Furthermore, both these CPUs have identical turbo speeds. The Ryzen 7 5800 outputs less heat than Ryzen 9 3900X thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Ryzen 9 3900X has significantly more L2 cache than the Ryzen 7 5800. 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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