Intel Core i5-12400 vs Intel Core i9-7940X

Compare Intel 12th Generation Core i5 6 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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Price

The cheapest price from our partner retailers

$ 153.99
$ 146.01 significantly less expensive
$ 300.00

Benchmark Score

Overall Score

A combined score of all workloads

7038 points
34% slightly better overall score
5222 points

Gaming Score

The raw gaming performance with a fast GPU

9694 points
57% significantly better gaming score
6170 points

Multitasking Score

Performance in workloads using up to 8 cores

6210 points
25% slightly better multitasking score
4938 points

Heavy Workload Score

Performance in workloads using up to 16 cores

6013 points
22% slightly better heavy workload score
4896 points

Free CPU Benchmark

Want to compare your processor against the Core i5-12400 and the Core i9-7940X? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

164.62 points
261.54 points
58% significantly higher Blender score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

8911 points
9233 points
3% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

2130 points
63% significantly higher Geekbench 5 (single) score
1299 points
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

8875 points
10511 points
18% slightly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

2207 points
52% significantly higher Geekbench 6 (single) score
1444 points

Specifications

Cores

Number of physical processing units

6
14
133% significantly more cores

Threads

Number of logical processing units

12
28
133% significantly more threads

Clock Speed

Base frequency at which the chip operates

2.5 GHz
3.1 GHz
24% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.4 GHz
2% slightly higher turbo speed
4.3 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W
153% significantly lower TDP
165 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

20
44
120% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
4
100% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
Identical
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

480 KiB
896 KiB
86% significantly more L1 cache

L3 Cache

General memory pool for all cores

18 MiB
25 MiB
38% slightly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

190th of 1,089
324th of 1,089

Family

The product line

12th Generation Core i5
Core X-series

Release date

The official date of release of this chip

2022 February
2017 August

Memory Type

The type of memory used by this chip

DDR5-4800
DDR4-2666

Is Unlocked

Can this CPU can be overclocked

No
Yes

Supports ECC memory

Does this CPU support error correcting memory

-
No

Core i5-12400 vs Core i9-7940X specs and performance

According to the hardwareDB Benchmark tool, the Core i5-12400 is faster than the Core i9-7940X. Furthermore, our gaming benchmark shows that it also outperforms the Core i9-7940X in all gaming tests too.

With info from our database, we find that the Core i9-7940X has significantly more cores with 14 cores whereas the Core i5-12400 has 6 cores. It also has more threads than the Core i5-12400. Our comparison shows that the Core i9-7940X has a slightly higher clock speed compared to the Core i5-12400. Despite this, the Core i5-12400 has a slightly higher turbo speed. A Core i5-12400 CPU outputs less heat than a Core i9-7940X CPU because of its 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 i5-12400 has more threads than cores. Each physical core is split into multiple threads.

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