Intel Core i9-12900KS vs AMD Ryzen 9 7945HX

Compare Intel 12th Generation Core i9 16 core CPU vs AMD Ryzen 9 16 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Specifications
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CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

14046 points

0.30% slightly better overall score

14004 points

Gaming Score

The raw gaming performance with a fast GPU

14925 points

20% slightly better gaming score

12364 points

Multitasking Score

Performance in workloads using up to 8 cores

13755 points

14599 points

6% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

13690 points

14860 points

8% slightly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

3DMark Physics score

Physics simulation benchmark

12192 points

13984 points

14% slightly higher 3DMark Physics score

Blender score

Cycles Render (Samples per minute)

372.23 points

475.58 points

27% slightly higher Blender score

Geekbench 5 (multi) score

Multi threaded benchmark

16406 points

10% slightly higher Geekbench 5 (multi) score

14865 points

Geekbench 5 (single) score

Single threaded benchmark

2655 points

2684 points

1% slightly higher Geekbench 5 (single) score

Geekbench 6 (multi) score

Multi threaded benchmark

16013 points

16083 points

0.44% slightly higher Geekbench 6 (multi) score

Geekbench 6 (single) score

Single threaded benchmark

2713 points

2764 points

1% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

33% slightly more threads

Clock Speed

Base frequency at which the chip operates

3.4 GHz

35% slightly higher clock speed

2.50 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.5 GHz

1% slightly higher turbo speed

5.4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

150 W

55 W

172% significantly lower TDP

Memory Channels

Lanes for simultaneous memory access

Identical

L1 Cache

Smallest embedded memory, but the fastest

1280 KiB

25% slightly more L1 cache

1024 KiB

L3 Cache

General memory pool for all cores

30 MiB

64 MiB

113% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

30th of 1,089

31st of 1,089

Family

The product line

12th Generation Core i9

Ryzen 9

Release date

The official date of release of this chip

2022 February

2023 February

Memory Type

The type of memory used by this chip

DDR5-4800

DDR5

Is Unlocked

Can this CPU can be overclocked

Yes

Supports ECC memory

Does this CPU support error correcting memory

Yes

Core i9-12900KS vs Ryzen 9 7945HX specs and performance

Our benchmark analysis concludes that the Ryzen 9 7945HX performs better than the Core i9-12900KS. Despite this, the Core i9-12900KS has the advantage in our gaming benchmark.

When comparing these CPUs we notice that they have the same number of cores but the Ryzen 9 7945HX has more threads. Our comparison shows that the Core i9-12900KS has a slightly higher clock speed compared to the Ryzen 9 7945HX.

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 Core i9-12900KS has more threads than cores. Each physical core is split into multiple threads.