Intel Core i5-8400 vs Intel Core i5-12400

Compare Intel 8th Generation Core i5 6 core CPU vs Intel 12th Generation Core i5 6 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

$ 284.41
$ 193.99
$ 90.42 significantly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

37 %
70 %
89% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

59 %
96 %
62% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

30 %
62 %
106% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

28 %
60 %
114% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-8400 and the Core i5-12400? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Geekbench (multi) score

Multi threaded benchmark

4492
8054
79% significantly higher Geekbench (multi) score
Geekbench (single) score

Geekbench (single) score

Single threaded benchmark

1031
1635
58% significantly higher Geekbench (single) score
3DMark Physics score

3DMark Physics score

Physics simulation benchmark

4947
9345
88% significantly higher 3DMark Physics score

Specifications

Cores

Number of physical processing units

6
Identical
6

Threads

Number of logical processing units

6
12
100% significantly more threads

Clock Speed

Base frequency at which the chip operates

2.8 GHz
11% slightly higher clock speed
2.5 GHz

Turbo Speed

Higher frequency used for heavy workloads

4 GHz
4.4 GHz
10% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W
Identical
65 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
20
25% slightly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
Identical
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

384 KiB
480 KiB
25% slightly more L1 cache

L3 Cache

General memory pool for all cores

9 MiB
18 MiB
100% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

313th of 1,219
77th of 1,219

Family

The product line

8th Generation Core i5
12th Generation Core i5

Release date

The official date of release of this chip

November 2017
February 2022

Memory Type

The type of memory used by this chip

DDR4-2666
DDR5-4800

Is Unlocked

Can this CPU can be overclocked

No
No

Supports ECC memory

Does this CPU support error correcting memory

No
-

Core i5-8400 vs Core i5-12400 specs and performance

According to the hardwareDB Benchmark tool, the Core i5-12400 is faster than the Core i5-8400. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-8400 in all gaming tests too.

Info from our database shows that they both have the same core count but the Core i5-12400 has more threads. Our comparison shows that the Core i5-8400 has a slightly higher clock speed compared to the Core i5-12400. Despite this, the Core i5-12400 has a slightly higher turbo speed. Both these chips have an identical TDP (Thermal Design Power). 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. For instance, the Core i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.

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