Core i5-8400: specs and comparison

Performance score

Core i5-8400 2017 · 6/6 cores/threads, 65 W

20.10

Single-core	31.66
Multi-core	12.75

Core i5-8400 scores 20.1 out of 100 by our estimate and ranks #432 of 532 CPUs in our database.

The score is our own estimate from the specs (cores, threads, clocks, architecture generation), not a benchmark run. 100 = the fastest CPU in our database.

Real tests

What the test measures

Blender is a popular free 3D graphics program. The test makes the device render three ready-made 3D scenes (light, shadows, reflections) and counts how many render passes it finishes per minute. The higher the number, the faster the device handles heavy work: 3D, video editing, photo processing. On a CPU the test loads all cores at once, so it shows the chip's full power; on a graphics card it shows its compute strength.

CPU rendering (Blender)

Core i5-8400

78

faster than 43% of tested · runs: 16

Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.

Description

Core i5-8400 is a desktop Intel processor based on the Coffee Lake architecture, released on Q4 2017. It has 6 cores and 6 threads running at 2.8–4 GHz, 9 MB of L3 cache and the 14 nm process. It fits the LGA1151 socket, has a 65 W TDP and supports DDR4-2666 memory.

Overview

Score (0–100)	20.1
Ranking position	432
Power efficiency (0–100)	16.16
Type	Desktop
Manufacturer	Intel
Architecture	Coffee Lake
Release date	Q4 2017

Specifications

Cores	6
Threads	6
Base clock	2.8 GHz
Boost clock	4 GHz
L3 cache	9 MB
Process node	14 nm
Unlocked multiplier	no
Integrated graphics	Intel UHD Graphics 630
NPU (AI accelerator)	no

Compatibility

Socket	LGA1151
TDP	65 W

Memory and PCI Express

Memory type	DDR4-2666
Memory channels	2
Max memory	128 GB
PCI Express version	3.0
PCIe lanes	16

Games

Core i5-8400 meets 86% of minimum and 46% of recommended requirements of the games in our database (compared with the models named in official requirements).

Can my PC run it? →

Equivalent from the other brand

The closest AMD CPU in performance is the Ryzen 3 3100. Core i5-8400 vs Ryzen 3 3100 →

Similar performance

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Core i5-8400: specifications