AMD Ryzen 5 8645HS vs AMD Ryzen 9 8940HX

Compare AMD Ryzen 5 6 core CPU vs AMD Ryzen 8000 Series 8 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Benchmark Score

Overall Score

A combined score of all workloads

7040 points
10700 points
51% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

9593 points
10758 points
12% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

6234 points
10731 points
72% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

6029 points
10842 points
79% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Ryzen 5 8645HS and the Ryzen 9 8940HX? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

156.82 points
458.15 points
192% 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

4.30 GHz
48% significantly higher clock speed
2.9 GHz

Turbo Speed

Higher frequency used for heavy workloads

5 GHz
5.3 GHz
6% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

45 W
22% slightly lower TDP
55 W

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

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

16 MiB
100% significantly more L3 cache
8 MiB

Other details

Rank

Ranking in the hardwareDB database

189th of 1,089
75th of 1,089

Family

The product line

Ryzen 5
Ryzen 8000 Series

Release date

The official date of release of this chip

-
2025 April

Memory Type

The type of memory used by this chip

DDR5 (FP7r2)
DDR5

Is Unlocked

Can this CPU can be overclocked

No
Yes

Ryzen 5 8645HS vs Ryzen 9 8940HX benchmarks

According to the hardwareDB Benchmark tool, the Ryzen 5 8645HS is faster than the Ryzen 9 8940HX. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 8940HX in all gaming tests too.

With info from our database, we find that the Ryzen 9 8940HX has slightly more cores with 8 cores whereas the Ryzen 5 8645HS has 6 cores. It also has more threads than the Ryzen 5 8645HS. These CPUs have different clock speeds. Indeed, the Ryzen 5 8645HS has a significantly higher clock speed compared to the Ryzen 9 8940HX. Despite this, the Ryzen 9 8940HX has a slightly higher turbo speed. A Ryzen 5 8645HS CPU outputs less heat than a Ryzen 9 8940HX CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, the Ryzen 5 8645HS has significantly more L2 cache when compared to the Ryzen 9 8940HX. The Ryzen 5 8645HS 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 5 8645HS has more threads than cores. Each physical core is split into multiple threads.

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