AMD Ryzen 7 5800X vs AMD Ryzen 9 3900XT

Compare AMD Ryzen 7 Desktop 8 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

$ 310
$ 388.18 significantly less expensive
$ 698

Benchmark Score

Overall Score

A combined score of all workloads

92 %
103 %
11% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

108 %
5% slightly better gaming score
102 %

Multitasking Score

Performance in workloads using up to 8 cores

87 %
103 %
18% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

85 %
103 %
21% slightly better heavy workload score

Free CPU Benchmark

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

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

10,319
11,952
15% slightly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

1,669
26% slightly higher Geekbench (single) score
1,317

3DMark Physics score

Physics simulation benchmark

11,366
11,984
5% slightly higher 3DMark Physics score

Specifications

Cores

Number of physical processing units

8
12
49% significantly more cores

Threads

Number of logical processing units

16
24
49% significantly more threads

Clock Speed

Base frequency at which the chip operates

4 GHz
Identical
4 GHz

Turbo Speed

Higher frequency used for heavy workloads

5 GHz
Identical
5 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W
Identical
105 W

L1 Cache

Smallest embedded memory, but the fastest

512 KiB
768 KiB
49% significantly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

4 MiB
6 MiB
49% significantly more L2 cache

L3 Cache

General memory pool for all cores

32 MiB
64 MiB
100% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

74th of 1,327
42nd of 1,327

Family

The product line

Ryzen 7 Desktop
Ryzen 9 Desktop

Release date

The official date of release of this chip

May 2020
July 2020

Memory Type

The type of memory used by this chip

DDR4
DDR4

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Supports ECC memory

Does this CPU support error correcting memory

Yes
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Ryzen 7 5800X vs Ryzen 9 3900XT specs and performance

According to the hardwareDB Benchmark tool, the Ryzen 9 3900XT is faster than the Ryzen 7 5800X. Despite this, the Ryzen 7 5800X has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Ryzen 9 3900XT has significantly more cores with 12 cores compared to the Ryzen 7 5800X that has 8 cores. It also has more threads than the Ryzen 7 5800X. Both the Ryzen 7 5800X and Ryzen 9 3900XT have the same clock speed. Furthermore, both these CPUs have identical turbo speeds. 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. In terms of cache, the Ryzen 9 3900XT has significantly more L2 cache when compared to the Ryzen 7 5800X. The Ryzen 9 3900XT 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 7 5800X has more threads than cores. Each physical core is split into multiple threads.

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