AMD Ryzen 9 3900X vs AMD Ryzen 9 7940HS

Compare AMD Ryzen 9 Desktop 12 core CPU vs AMD Ryzen 9 8 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Other Benchmarks
Specifications
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Benchmark Score

Overall Score

A combined score of all workloads

8422 points

9048 points

7% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

8440 points

10935 points

29% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

8406 points

8413 points

0.08% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

8392 points

2% slightly better heavy workload score

8221 points

Free CPU Benchmark

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Other Benchmarks

3DMark Physics score

Physics simulation benchmark

8594 points

10% slightly higher 3DMark Physics score

7779 points

Blender score

Cycles Render (Samples per minute)

276.80 points

22% slightly higher Blender score

225.40 points

Cinebench R23 score

Multi threaded benchmark

19000 points

4% slightly higher Cinebench R23 score

18131 points

Geekbench 6 (multi) score

Multi threaded benchmark

9907 points

11485 points

15% slightly higher Geekbench 6 (multi) score

Geekbench 6 (single) score

Single threaded benchmark

1704 points

2444 points

43% significantly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

49% significantly more cores

Threads

Number of logical processing units

49% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.80 GHz

4.00 GHz

5% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz

5.2 GHz

13% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W

54 W

94% significantly lower TDP

Memory Channels

Lanes for simultaneous memory access

Identical

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

8 MiB

33% slightly more L2 cache

L3 Cache

General memory pool for all cores

64 MiB

300% significantly more L3 cache

16 MiB

Other details

Rank

Ranking in the hardwareDB database

130th of 1,089

110th of 1,089

Family

The product line

Ryzen 9 Desktop

Ryzen 9

Release date

The official date of release of this chip

2019 July

2023 April

Memory Type

The type of memory used by this chip

DDR4

DDR5 (FP7r2)

Is Unlocked

Can this CPU can be overclocked

Yes

Ryzen 9 3900X vs Ryzen 9 7940HS comparison

Our benchmark analysis concludes that the Ryzen 9 7940HS performs better than the Ryzen 9 3900X. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 3900X in all gaming tests too.

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 9 7940HS that has 8 cores. It also has more threads than the Ryzen 9 7940HS. These CPUs have different clock speeds. Indeed, the Ryzen 9 7940HS has a slightly higher clock speed compared to the Ryzen 9 3900X. The cache sizes of these CPUs are different. Indeed, the Ryzen 9 7940HS has slightly more L2 cache than the Ryzen 9 3900X. Despite this, the Ryzen 9 3900X has significantly more L3 cache compared to the Ryzen 9 7940HS.

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.