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Intel Core i5-8400 vs Intel Core i9-10900F

Last updated: 2026-07-03

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 2 - 78 %

Intel Core i5-8400

Rank 1 - 100 %

Intel Core i9-10900F

Multi-core performance

Rank 2 - 45 %

Intel Core i5-8400

Rank 1 - 100 %

Intel Core i9-10900F

Geekbench 6 Single-Core
Single-core performance

6C / 6T · 4.00 GHz

1,322

10C / 20T · 5.20 GHz

1,662

Geekbench 6 Multi-Core
Multi-core performance

6C / 6T · 3.80 GHz

4,814

10C / 20T · 4.60 GHz

8,972

Cinebench R20 Single-Core
Single-core performance

6C / 6T · 4.00 GHz

411 cb

10C / 20T · 5.20 GHz

529 cb

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

6C / 6T · 4.00 GHz

1,053

10C / 20T · 5.20 GHz

1,379

Cinebench R20 Multi-Core
Multi-core performance

6C / 6T · 3.80 GHz

2,291 cb

10C / 20T · 4.60 GHz

5,912 cb

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

6C / 6T · 3.80 GHz

4,608

10C / 20T · 4.60 GHz

10,744

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

6C / 6T · 2.80 GHz

2,482

10C / 20T · 2.80 GHz

6,751

Cinebench R15 (Single-Core)
Single-core performance

6C / 6T · 4.00 GHz

163 cb

10C / 20T · 5.20 GHz

231 cb

Cinebench R15 (Multi-Core)
Multi-core performance

6C / 6T · 3.80 GHz

925 cb

10C / 20T · 4.60 GHz

2,541 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

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

Monero Hashrate
94 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 i9-10900F
Family	Intel Core i5 (336)	Intel Core i9 (81)
CPU group	Intel Core i 8000 (20)	Intel Core i 10000 (43)
Architecture	Coffee Lake S	Comet Lake S
Technology	14 nm	14 nm
Segment	Desktop	Desktop
Socket	LGA 1151-2	LGA 1200
Predecessor	Intel Core i5-7400
Successor	Intel Core i5-9400	Intel Core i9-11900F

CPU Cores and Base Frequency

Wischen	Intel Core i5-8400	Intel Core i9-10900F
CPU Cores / Threads	6 / 6	10 / 20
Hyperthreading / SMT	✗	✓
Core architecture	normal	normal
Cores:	6x	10x
Frequency:	2.80 GHz	2.80 GHz
Turbo (1 Core):	4.00 GHz	5.20 GHz
Turbo (All Cores):	3.80 GHz	4.60 GHz
L2-Cache
L3-Cache	9.00 MB	20.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Core i5-8400	Intel Core i9-10900F
GPU name	Intel UHD Graphics 630	no iGPU
GPU frequency	0.35 - 1.15 GHz
CUs / Shader	24 / 192	/
Raytracing	✗	✗
Max. displays	3
Max. GPU Memory	64 GB
Technology	14 nm
Release date	Q4/2017

NPU AI performance

Wischen	Intel Core i5-8400	Intel Core i9-10900F
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i5-8400	Intel Core i9-10900F
Memory	DDR4-2666 (42.7 GB/s)	DDR4-2933 (46.9 GB/s)
Max. Memory	128 GB	128 GB
Memory channels	2	2
ECC	No	No
PCIe	3.0 x 16	3.0 x 16
PCIe Bandwidth	15.8 GB/s	15.8 GB/s

Thermal Management

Wischen	Intel Core i5-8400	Intel Core i9-10900F
TDP	65 W	65 W
TDP (PL2)
TDP up
TDP down
T. junction max.		100 °C

Technical details

Wischen	Intel Core i5-8400	Intel Core i9-10900F
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Windows 11, Linux	Windows 10, Windows 11, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2	SSE4.1, SSE4.2, AVX2
Release date	Q4/2017	Q2/2020
Release price	260 $	422 $
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 (77 ratings), while Intel Core i9-10900F has received 4.9 stars (14 ratings).

Click on the stars to rate one or both processors.

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

★★★★★

Intel Core i9-10900F
10C / 20T · 2.80 - 5.20 GHz

★★★★★