Intel Core i9-12900H vs Intel Core i9-9940X

Compare Intel 12th Generation Core i9 14 core CPU vs Intel Core X-series 14 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

8273 points

1% slightly better overall score

8137 points

Gaming Score

The raw gaming performance with a fast GPU

10410 points

36% slightly better gaming score

7646 points

Multitasking Score

Performance in workloads using up to 8 cores

7643 points

8299 points

8% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

7537 points

8373 points

11% slightly better heavy workload score

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

209.04 points

256.89 points

22% slightly higher Blender score

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

40% slightly more threads

Clock Speed

Base frequency at which the chip operates

2.5 GHz

3.3 GHz

32% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

5 GHz

13% slightly higher turbo speed

4.4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

45 W

266% significantly lower TDP

165 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

57% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

100% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB

128 GiB

100% significantly more supported memory

L1 Cache

Smallest embedded memory, but the fastest

1120 KiB

25% slightly more L1 cache

896 KiB

L3 Cache

General memory pool for all cores

24 MiB

25 MiB

4% slightly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

142nd of 1,099

149th of 1,099

Family

The product line

12th Generation Core i9

Core X-series

Release date

The official date of release of this chip

2022 February

2018 November

Memory Type

The type of memory used by this chip

DDR5-4800

DDR4-2666

Is Unlocked

Can this CPU can be overclocked

Yes

Supports ECC memory

Does this CPU support error correcting memory

Core i9-12900H vs Core i9-9940X specs and performance

In our benchmarks, the Core i9-12900H beats the Core i9-9940X in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i9-9940X in all gaming tests too.

Our spec comparison shows that they have an identical amount of cores but the Core i9-9940X has more threads. With our hardware info, we find that the Core i9-9940X has a slightly higher clock speed than the Core i9-12900H. Despite this, the Core i9-12900H has a slightly higher turbo speed. A Core i9-12900H CPU outputs less heat than a Core i9-9940X CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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