Intel Core i9-12900K 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?

Benchmark Score
Other Benchmarks
Specifications
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CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

13335 points

14004 points

5% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

14237 points

15% slightly better gaming score

12364 points

Multitasking Score

Performance in workloads using up to 8 cores

13039 points

14599 points

11% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

12988 points

14860 points

14% slightly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

3DMark Physics score

Physics simulation benchmark

11701 points

13984 points

19% slightly higher 3DMark Physics score

Blender score

Cycles Render (Samples per minute)

364.47 points

475.58 points

30% slightly higher Blender score

Cinebench R23 score

Multi threaded benchmark

27005 points

34613 points

28% slightly higher Cinebench R23 score

Geekbench 5 (multi) score

Multi threaded benchmark

15144 points

1% slightly higher Geekbench 5 (multi) score

14865 points

Geekbench 5 (single) score

Single threaded benchmark

2550 points

2684 points

5% slightly higher Geekbench 5 (single) score

Geekbench 6 (multi) score

Multi threaded benchmark

15365 points

16083 points

4% slightly higher Geekbench 6 (multi) score

Geekbench 6 (single) score

Single threaded benchmark

2616 points

2764 points

5% 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

3.2 GHz

27% slightly higher clock speed

2.50 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.2 GHz

5.4 GHz

3% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

241 W

55 W

338% 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

39th of 1,118

30th of 1,118

Family

The product line

12th Generation Core i9

Ryzen 9

Release date

The official date of release of this chip

2021 November

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 i9-12900K vs Ryzen 9 7945HX comparison

In our benchmarks, the Ryzen 9 7945HX beats the Core i9-12900K in overall performance. Despite this, the Core i9-12900K has the advantage in our gaming benchmark.

Our spec comparison shows that they have an identical amount of cores but the Ryzen 9 7945HX has more threads. Our comparison shows that the Core i9-12900K has a slightly higher clock speed compared to the Ryzen 9 7945HX. Despite this, the Ryzen 9 7945HX has a slightly higher turbo speed. The Ryzen 9 7945HX outputs less heat than Core i9-12900K thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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