Skip to content
InnoReviews

AMD Ryzen 7 9800X3D vs Intel Core i5-8400

WINNER
AMD Ryzen 7 9800X3D
77.6Inno Score
VS
Intel Core i5-8400
29Inno Score
85.2Single-core31.1
64.7Multi-core28.6
91.9Gaming27.2
19 spec wins — AMD Ryzen 7 9800X3D2 spec wins — Intel Core i5-8400

InnoReviews verdict

AMD Ryzen 7 9800X3D wins this desktop processor face-off, 77.6 to 29, pulling ahead mainly in gaming (+65) and Single-core (+54). 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 AMD Ryzen 7 9800X3D

  • Stronger Single-core score: 85 vs 31
  • Stronger Multi-core score: 65 vs 29
  • Stronger gaming score: 92 vs 27
  • 967% higher L3 cache: 96 MB vs 9 MB
  • 433% higher L2 cache: 8 MB vs 2 MB

Reasons to pick the Intel Core i5-8400

  • 46% lower Base TDP: 65 W vs 120 W
  • Has Cooler included — the other doesn't
  • Lower launch price: $182 vs $479

General

General comparison: AMD Ryzen 7 9800X3D versus Intel Core i5-8400
SpecAMD Ryzen 7 9800X3DIntel Core i5-8400
Announced20242017
SocketAM5LGA1151-v2
Process4 nm+71%14 nm
Base TDP120 W65 W+46%
Max turbo power162 W—
Unlocked multiplierYesNo
Cooler includedNoYes

Cores & Clocks

Cores & Clocks comparison: AMD Ryzen 7 9800X3D versus Intel Core i5-8400
SpecAMD Ryzen 7 9800X3DIntel Core i5-8400
Cores8+33%6
Performance cores8+33%6
Efficiency cores00
Threads16+167%6
Base clock4.7 GHz+68%2.8 GHz
Boost clock5.2 GHz+30%4 GHz
L2 cache8 MB+433%2 MB
L3 cache96 MB+967%9 MB

Integrated GPU

Integrated GPU comparison: AMD Ryzen 7 9800X3D versus Intel Core i5-8400
SpecAMD Ryzen 7 9800X3DIntel Core i5-8400
iGPUAMD Radeon Graphics (2 CU RDNA 2)Intel UHD Graphics 630
iGPU clock2,200 MHz+110%1,050 MHz

Memory

Memory comparison: AMD Ryzen 7 9800X3D versus Intel Core i5-8400
SpecAMD Ryzen 7 9800X3DIntel Core i5-8400
Memory supportDDR5-5600DDR4-2666
Max memory192 GB+200%64 GB
Memory channels22

Platform

Platform comparison: AMD Ryzen 7 9800X3D versus Intel Core i5-8400
SpecAMD Ryzen 7 9800X3DIntel Core i5-8400
PCIe version5+67%3
CPU PCIe lanes28+75%16

Benchmarks

Benchmarks comparison: AMD Ryzen 7 9800X3D versus Intel Core i5-8400
SpecAMD Ryzen 7 9800X3DIntel Core i5-8400
Geekbench 6 (single)3,150+130%Top 5%1,370Top 75%
Geekbench 6 (multi)18,500+278%Top 10%4,900Top 78%
Cinebench R23 (single)2,130+85%Top 12%1,150Top 75%
Cinebench R23 (multi)19,500+205%Top 21%6,400Top 77%
PassMark40,000+335%Top 15%9,200Top 80%

Related comparisons

AMD Ryzen 7 9800X3Dvs Intel Core i7-14700VSAMD Ryzen 7 9800X3Dvs AMD Ryzen 9 7900XVSAMD Ryzen 7 9800X3Dvs Intel Core i7-13700KVSAMD Ryzen 7 9800X3Dvs Intel Core i7-14700KVSIntel Core i5-8400vs Intel Core i7-5820KVSIntel Core i5-8400vs Intel Core i5-9400FVSIntel Core i5-8400vs Intel Core i7-5930KVSIntel Core i5-8400vs Intel Core i7-7700KVS

Try another matchup