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FPS Winner
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The Core i9-12900KF is at least 2x faster gaming CPU than the Core i5-8400, however, it's the same value for money, as it's €158.05 more expensive!

Advantages of the Core i9-12900KF

  • At least 2x faster CPU for gaming
  • Can execute more multi-threaded tasks simultaneously – 24 vs 6 threads

Advantages of the Core i5-8400

  • Up to 47% cheaper€176.90 vs €334.95
  • Consumes up to 48% less energy65 vs 125 Watts
  • Has an integrated GPU, while the Core i9-12900KF cannot run games without a dedicated GPU

Core i9-12900KF vs Core i5-8400 for Gaming

The CPU's performance in selected game and settings

Core i9-12900KF vs Core i5-8400 in My Games

The FPS you'll get in saved games

The FPS you'll get in saved games

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Synthetic Benchmarks

The Core i9-12900KF vs Core i5-8400 in synthetic CPU benchmarks

Intel Core i9-12900KF Logo

Core i9-12900KF

Nov 4th, 2021


Geekbench 6 Single-Core

2608

100%

Geekbench 6 Multi-Core

15118

100%

Intel Core i5-8400 Logo

Core i5-8400

Oct 5th, 2017


Geekbench 6 Single-Core

1375

53%

Geekbench 6 Multi-Core

4817

32%

Performance Specifications

The Core i9-12900KF vs Core i5-8400 in core CPU performance specifications

Intel Core i9-12900KF Logo

Core i9-12900KF

Nov 4th, 2021


Cores

16-core

100%

L3 Cache

30 MB

100%


Base Frequency

3.2 GHz

100%

Turbo Frequency

5.2 GHz

100%

Max. DDR5 RAM Speed

4800 MHz

100%

Intel Core i5-8400 Logo

Core i5-8400

Oct 5th, 2017


Cores

6-core

38%

L3 Cache

9 MB

30%


Base Frequency

2.8 GHz

87%

Turbo Frequency

4 GHz

77%

Max. DDR4 RAM Speed

2666 MHz

56%

Specifications

Comparison of all specifications

Specifications

Comparison of all specifications

General
Nov 4th, 2021
Release DateOct 5th, 2017
$564.00MSRP
$182.00
Desktop
Segment
Desktop
Intel Socket 1700SocketIntel Socket 1151
Alder LakeCodenameCoffee Lake
125 WPower Consumption
65 W
Performance
16
Cores6
24
Threads6
3.2 GHz
Base Frequency2.8 GHz
5.2 GHz
Turbo Frequency4.0 GHz
30 MB
L3 Cache9 MB
Other Features
DDR4 @ 3200 MHz, DDR5 @ 4800 MHzRAMDDR4 @ 2666 MHz
NoIntegrated Graphics
UHD Graphics 630
Yes
OverclockableNo

Prebuilt Gaming PCs

Our users choose these PCs when going for the Core i9-12900KF or Core i5-8400

Our users choose these PCs when going for the Core i9-12900KF or Core i5-8400

CPUs / Processors

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