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Intel Core i5-10400F vs Intel Core i5-8400

WINNER
Intel Core i5-10400F
32.2Inno Score
VS
Intel Core i5-8400
29Inno Score
28.6Single-core31.1
32.5Multi-core28.6
36Gamingspec-based27.2
8 spec wins — Intel Core i5-10400F1 spec wins — Intel Core i5-8400

InnoReviews verdict

Intel Core i5-10400F wins this desktop processor face-off, 32.2 to 29, pulling ahead mainly in multi-core (+4). Intel Core i5-8400 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Intel Core i5-10400F

  • Stronger multi-core score: 33 vs 29
  • 100% higher threads: 12 vs 6
  • 100% higher Max memory: 128 GB vs 64 GB
  • 33% higher L3 cache: 12 MB vs 9 MB
  • 31% higher PassMark: 12,094 vs 9,200

Reasons to pick the Intel Core i5-8400

No decisive spec advantages — this side competes on price and preference.

General

General comparison: Intel Core i5-10400F versus Intel Core i5-8400
SpecIntel Core i5-10400FIntel Core i5-8400
Announced20202017
SocketLGA1200LGA1151-v2
Process14 nm14 nm
Base TDP65 W65 W
Unlocked multiplierNoNo
Cooler included—Yes

Cores & Clocks

Cores & Clocks comparison: Intel Core i5-10400F versus Intel Core i5-8400
SpecIntel Core i5-10400FIntel Core i5-8400
Cores66
Performance cores—6
Efficiency cores—0
Threads12+100%6
Base clock2.9 GHz+4%2.8 GHz
Boost clock4.3 GHz+7%4 GHz
L2 cache2 MB2 MB
L3 cache12 MB+33%9 MB

Integrated GPU

Integrated GPU comparison: Intel Core i5-10400F versus Intel Core i5-8400
SpecIntel Core i5-10400FIntel Core i5-8400
iGPU—Intel UHD Graphics 630
iGPU clock—1,050 MHz

Memory

Memory comparison: Intel Core i5-10400F versus Intel Core i5-8400
SpecIntel Core i5-10400FIntel Core i5-8400
Memory supportDDR4-2666DDR4-2666
Max memory128 GB+100%64 GB
Memory channels22

Platform

Platform comparison: Intel Core i5-10400F versus Intel Core i5-8400
SpecIntel Core i5-10400FIntel Core i5-8400
PCIe version33
CPU PCIe lanes1616

Benchmarks

Benchmarks comparison: Intel Core i5-10400F versus Intel Core i5-8400
SpecIntel Core i5-10400FIntel Core i5-8400
Geekbench 6 (single)—1,370Bottom 22%
Geekbench 6 (multi)—4,900Bottom 20%
Cinebench R23 (single)1,114Bottom 19%1,150+3%Bottom 23%
Cinebench R23 (multi)8,219+28%Bottom 27%6,400Bottom 19%
PassMark12,094+31%Bottom 19%9,200Bottom 14%

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