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Intel Core i5-8400 vs Intel Core i5-2400

Last updated: 2026-06-06

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 1 - 100 %

Intel Core i5-8400

Rank 2 - 60 %

Intel Core i5-2400

Multi-core performance

Rank 1 - 100 %

Intel Core i5-8400

Rank 2 - 44 %

Intel Core i5-2400

Geekbench 6 Single-Core
Single-core performance

6C / 6T · 4.00 GHz

1,322

4C / 4T · 3.40 GHz

598

Geekbench 6 Multi-Core
Multi-core performance

6C / 6T · 3.80 GHz

4,814

4C / 4T · 3.10 GHz

1,778

Cinebench R20 Single-Core
Single-core performance

6C / 6T · 4.00 GHz

411 cb

4C / 4T · 3.40 GHz

253 cb

Geekbench 5, 64bit Single-Core
Single-core performance

6C / 6T · 4.00 GHz

1,053

4C / 4T · 3.40 GHz

691

Cinebench R20 Multi-Core
Multi-core performance

6C / 6T · 3.80 GHz

2,291 cb

4C / 4T · 3.10 GHz

863 cb

Geekbench 5, 64bit Multi-Core
Multi-core performance

6C / 6T · 3.80 GHz

4,608

4C / 4T · 3.10 GHz

2,345

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel UHD Graphics 630

442

Intel HD Graphics 2000

106

CPU-Z Benchmark 17 Single-Core
Single-core performance

6C / 6T · 4.00 GHz

450

4C / 4T · 3.40 GHz

317

CPU-Z Benchmark 17 Multi-Core
Multi-core performance

6C / 6T · 2.80 GHz

2,482

4C / 4T · 3.10 GHz

1,230

Cinebench R15 (Single-Core)
Single-core performance

6C / 6T · 4.00 GHz

163 cb

4C / 4T · 3.40 GHz

114 cb

Cinebench R15 (Multi-Core)
Multi-core performance

6C / 6T · 3.80 GHz

925 cb

4C / 4T · 3.10 GHz

355 cb

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

3DMark Timespy (iGPU)
534 entries

Blender 3.1 Benchmark
213 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Cinebench R11.5 iGPU
383 entries

Specifications

At a glance

Wischen	Intel Core i5-8400	Intel Core i5-2400
Family	Intel Core i5 (336)	Intel Core i5 (336)
CPU group	Intel Core i 8000 (20)	Intel Core i 2000 (28)
Architecture	Coffee Lake S	Sandy Bridge S
Technology	14 nm	32 nm
Segment	Desktop	Desktop
Socket	LGA 1151-2	LGA 1155
Predecessor	Intel Core i5-7400
Successor	Intel Core i5-9400

CPU Cores and Base Frequency

Wischen	Intel Core i5-8400	Intel Core i5-2400
CPU Cores / Threads	6 / 6	4 / 4
Hyperthreading / SMT	✗	✗
Core architecture	normal	normal
Cores:	6x	4x
Frequency:	2.80 GHz	3.10 GHz
Turbo (1 Core):	4.00 GHz	3.40 GHz
Turbo (All Cores):	3.80 GHz
L2-Cache
L3-Cache	9.00 MB	6.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Core i5-8400	Intel Core i5-2400
GPU name	Intel UHD Graphics 630	Intel HD Graphics 2000
GPU frequency	0.35 - 1.15 GHz	0.85 - 1.10 GHz
CUs / Shader	24 / 192	6 / 48
Raytracing	✗	✗
Max. displays	3	2
Max. GPU Memory	64 GB	2 GB
Technology	14 nm	32 nm
Release date	Q4/2017	Q1/2011

NPU AI performance

Wischen	Intel Core i5-8400	Intel Core i5-2400
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i5-8400	Intel Core i5-2400
Memory	DDR4-2666 (42.7 GB/s)	DDR3-1333 (21.3 GB/s)
Max. Memory	128 GB	32 GB
Memory channels	2	2
ECC	No	No
PCIe	3.0 x 16	2.0 x 16
PCIe Bandwidth	15.8 GB/s	8.0 GB/s

Thermal Management

Wischen	Intel Core i5-8400	Intel Core i5-2400
TDP	65 W	95 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

Wischen	Intel Core i5-8400	Intel Core i5-2400
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Windows 11, Linux	Windows 10, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2	SSE4.1, SSE4.2, AVX
Release date	Q4/2017	Q1/2011
Release price	260 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i5-8400 is 4.1 stars (75 ratings), while Intel Core i5-2400 has received 3.7 stars (45 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-8400
6C / 6T · 2.80 - 4.00 GHz

★★★★★

Intel Core i5-2400
4C / 4T · 3.10 - 3.40 GHz

★★★★★