AMD Ryzen 5 8400F vs AMD Ryzen 9 9950X3D

Compare AMD Ryzen 8000 Series 6 core CPU vs AMD Ryzen 9000 Series 16 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Price

The cheapest price from our partner retailers

$ 165.69
$ 502.11 significantly less expensive
$ 667.80

Benchmark Score

Overall Score

A combined score of all workloads

7722 points
16302 points
111% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

10390 points
14590 points
40% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

6857 points
16961 points
147% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

6632 points
17329 points
161% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Ryzen 5 8400F and the Ryzen 9 9950X3D? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

6145 points
17230 points
180% significantly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

179.45 points
643.21 points
258% significantly higher Blender score

Specifications

Cores

Number of physical processing units

6
16
166% significantly more cores

Threads

Number of logical processing units

12
32
166% significantly more threads

Clock Speed

Base frequency at which the chip operates

4.2 GHz
4.3 GHz
2% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.7 GHz
5.7 GHz
21% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W
161% significantly lower TDP
170 W

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
16 MiB
166% significantly more L2 cache

L3 Cache

General memory pool for all cores

16 MiB
128 MiB
700% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

156th of 1,089
14th of 1,089

Family

The product line

Ryzen 8000 Series
Ryzen 9000 Series

Release date

The official date of release of this chip

2024 April
2025 March

Memory Type

The type of memory used by this chip

DDR5
DDR5

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Ryzen 5 8400F vs Ryzen 9 9950X3D specs and performance

Our benchmark analysis concludes that the Ryzen 9 9950X3D performs better than the Ryzen 5 8400F. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 5 8400F in all gaming tests too.

With info from our database, we find that the Ryzen 9 9950X3D has significantly more cores with 16 cores whereas the Ryzen 5 8400F has 6 cores. It also has more threads than the Ryzen 5 8400F. With our hardware info, we find that the Ryzen 9 9950X3D has a slightly higher clock speed than the Ryzen 5 8400F. Also, the Ryzen 9 9950X3D has a slightly higher turbo speed. A Ryzen 5 8400F CPU outputs less heat than a Ryzen 9 9950X3D CPU because of its 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 9950X3D has significantly more L2 cache than the Ryzen 5 8400F. The Ryzen 9 9950X3D 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 5 8400F has more threads than cores. Each physical core is split into multiple threads.

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