AMD Ryzen 9 8940HX vs AMD Ryzen 9 9955HX

Compare AMD Ryzen 8000 Series 16 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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Specifications
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Benchmark Score

Overall Score

A combined score of all workloads

10700 points

11380 points

6% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

10758 points

1% slightly better gaming score

10581 points

Multitasking Score

Performance in workloads using up to 8 cores

10731 points

11723 points

9% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

10842 points

11982 points

10% slightly better heavy workload score

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

458.15 points

538.07 points

17% slightly higher Blender score

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

Identical

Clock Speed

Base frequency at which the chip operates

2.9 GHz

16% slightly higher clock speed

2.5 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.3 GHz

5.4 GHz

1% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

55 W

Identical

55 W

Memory Channels

Lanes for simultaneous memory access

Identical

L1 Cache

Smallest embedded memory, but the fastest

1024 KiB

1280 KiB

25% slightly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

4 MiB

16 MiB

300% significantly more L2 cache

L3 Cache

General memory pool for all cores

8 MiB

64 MiB

700% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

75th of 1,089

61st of 1,089

Family

The product line

Ryzen 8000 Series

Ryzen 9000 Series

Release date

The official date of release of this chip

2025 April

Memory Type

The type of memory used by this chip

DDR5

Is Unlocked

Can this CPU can be overclocked

Yes

Ryzen 9 8940HX vs Ryzen 9 9955HX benchmarks

In our benchmarks, the Ryzen 9 8940HX beats the Ryzen 9 9955HX in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 9955HX in all gaming tests too.

Info from our database shows that they both have the same core count and the same number of threads. With our hardware info, we find that the Ryzen 9 8940HX has a slightly higher clock speed than the Ryzen 9 9955HX. Despite this, the Ryzen 9 9955HX 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 cache sizes of these CPUs are different. Indeed, the Ryzen 9 9955HX has significantly more L2 cache than the Ryzen 9 8940HX. The Ryzen 9 9955HX also has significantly more L3 cache.

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 8940HX has more threads than cores. Each physical core is split into multiple threads.