Intel Core i5-9400F vs Intel Core i3-12100F

Compare Intel 9th Generation Core i5 6 core CPU vs Intel 12th Generation Core i3 4 core processor, specs and benchmark score. Which is the better CPU for gaming?

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The cheapest price from our partner retailers

$ 142.87
$ 99.99
$ 42.88 significantly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

39 %
52 %
33% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

62 %
84 %
35% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

31 %
43 %
38% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

30 %
41 %
36% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-9400F and the Core i3-12100F? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Geekbench (multi) score

Multi threaded benchmark

34% slightly higher Geekbench (multi) score
Geekbench (single) score

Geekbench (single) score

Single threaded benchmark

53% significantly higher Geekbench (single) score
3DMark Physics score

3DMark Physics score

Physics simulation benchmark

28% slightly higher 3DMark Physics score



Number of physical processing units

49% significantly more cores


Number of logical processing units

33% slightly more threads

Clock Speed

Base frequency at which the chip operates

2.9 GHz
3.3 GHz
13% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.1 GHz
4.3 GHz
4% slightly higher turbo speed


Thermal Design Power: Measure of heat generated by the CPU

65 W
58 W
12% slightly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

25% slightly more pcie lanes

Memory Channels

Lanes for simultaneous memory access


Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

384 KiB
20% slightly more L1 cache
320 KiB

L3 Cache

General memory pool for all cores

9 MiB
12 MiB
33% slightly more L3 cache

Other details


Ranking in the hardwareDB database

295th of 1,219
173rd of 1,219


The product line

9th Generation Core i5
12th Generation Core i3

Release date

The official date of release of this chip

February 2019
February 2022

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 i5-9400F vs Core i3-12100F specs and performance

According to the hardwareDB Benchmark tool, the Core i3-12100F is faster than the Core i5-9400F. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-9400F in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i5-9400F has significantly more cores with 6 cores compared to the Core i3-12100F that has 4 cores. Despite this, the Core i3-12100F has more threads than the Core i5-9400F. With our hardware info, we find that the Core i3-12100F has a slightly higher clock speed than the Core i5-9400F. Also, the Core i3-12100F has a slightly higher turbo speed. The Core i3-12100F outputs less heat than Core i5-9400F thanks to a slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. For instance, the Core i5-9400F has the same number of threads as cores. This means the the CPU does not support hyperthreading.


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