AMD Ryzen 9 7900X3D vs AMD Ryzen 9 7945HX3D

Compare AMD Ryzen 9 12 core CPU vs AMD Ryzen 9 16 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

13385 points
15% slightly better overall score
11621 points

Gaming Score

The raw gaming performance with a fast GPU

13203 points
28% slightly better gaming score
10251 points

Multitasking Score

Performance in workloads using up to 8 cores

13450 points
10% slightly better multitasking score
12118 points

Heavy Workload Score

Performance in workloads using up to 16 cores

13474 points
9% slightly better heavy workload score
12323 points

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 7900X3D and the Ryzen 9 7945HX3D? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

398.41 points
463.95 points
16% slightly higher Blender score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

17560 points
5% slightly higher Geekbench 6 (multi) score
16655 points
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

2866 points
3% slightly higher Geekbench 6 (single) score
2764 points

Specifications

Cores

Number of physical processing units

12
16
33% slightly more cores

Threads

Number of logical processing units

24
32
33% slightly more threads

Clock Speed

Base frequency at which the chip operates

4.40 GHz
91% significantly higher clock speed
2.30 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.6 GHz
3% slightly higher turbo speed
5.4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

120 W
55 W
118% significantly lower TDP

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L1 Cache

Smallest embedded memory, but the fastest

768 KiB
1024 KiB
33% slightly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

12 MiB
16 MiB
33% slightly more L2 cache

L3 Cache

General memory pool for all cores

128 MiB
192 MiB
49% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

38th of 1,089
56th of 1,089

Family

The product line

Ryzen 9
Ryzen 9

Release date

The official date of release of this chip

2023 February
2023 July

Memory Type

The type of memory used by this chip

DDR5
DDR5

Ryzen 9 7900X3D vs Ryzen 9 7945HX3D benchmarks

Our benchmark analysis concludes that the Ryzen 9 7900X3D performs better than the Ryzen 9 7945HX3D. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 7945HX3D in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Ryzen 9 7945HX3D has slightly more cores than the Ryzen 9 7900X3D. Indeed, the Ryzen 9 7945HX3D has 16 cores compared to 12 cores found in the Ryzen 9 7900X3D. It also has more threads than the Ryzen 9 7900X3D. With our hardware info, we find that the Ryzen 9 7900X3D has a significantly higher clock speed than the Ryzen 9 7945HX3D. Also, the Ryzen 9 7900X3D has a slightly higher turbo speed. The Ryzen 9 7945HX3D outputs less heat than Ryzen 9 7900X3D thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Ryzen 9 7945HX3D has more L2 cache than the Ryzen 9 7900X3D. The Ryzen 9 7945HX3D 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 9 7900X3D has more threads than cores. Each physical core is split into multiple threads.

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