Intel Core i7-12700H vs Intel Core i9-9940X

Compare Intel 12th Generation Core i7 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

100 %
5% slightly better overall score
95 %

Gaming Score

The raw gaming performance with a fast GPU

118 %
81% significantly better gaming score
65 %

Multitasking Score

Performance in workloads using up to 8 cores

94 %
106 %
12% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

94 %
110 %
17% slightly better heavy workload score

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Number of physical processing units



Number of logical processing units

40% slightly more threads

Clock Speed

Base frequency at which the chip operates

2 GHz
3 GHz
43% significantly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

5 GHz
6% slightly higher turbo speed
4 GHz


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

1,120 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


Ranking in the hardwareDB database

52nd of 1,335
64th of 1,335


The product line

12th Generation Core i7
Core X-series

Release date

The official date of release of this chip

February 2022
November 2018

Memory Type

The type of memory used by this chip


Is Unlocked

Can this CPU can be overclocked


Supports ECC memory

Does this CPU support error correcting memory


Core i7-12700H vs Core i9-9940X comparison

In our benchmarks, the Core i7-12700H 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.

When comparing these CPUs we notice that they have the same number of cores but the Core i9-9940X has more threads. Our comparison shows that the Core i9-9940X has a significantly higher clock speed compared to the Core i7-12700H. Despite this, the Core i7-12700H has a slightly higher turbo speed. A Core i7-12700H 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 i7-12700H has more threads than cores. Each physical core is split into multiple threads.


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