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FPS Winner
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The Core i9-11900KF is at least 2x faster gaming CPU than the Core i5-6400, however, it's a much worse value for money, as it's $232.79 more expensive!

Advantages of the Core i9-11900KF

  • At least 2x faster CPU for gaming
  • Can execute more multi-threaded tasks simultaneously – 16 vs 4 threads

Advantages of the Core i5-6400

  • Up to 81% cheaper$55.50 vs $288.29
  • A much better value for money for gaming
  • Consumes up to 48% less energy65 vs 125 Watts
  • Has an integrated GPU, while the Core i9-11900KF cannot run games without a dedicated GPU

Core i9-11900KF vs Core i5-6400 for Gaming

The CPU's performance in selected game and settings

Core i9-11900KF vs Core i5-6400 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 i9-11900KF vs Core i5-6400 in synthetic CPU benchmarks

Intel Core i9-11900KF Logo

Core i9-11900KF

Mar 16th, 2021


Geekbench 6 Single-Core

2327

100%

Geekbench 6 Multi-Core

10019

100%

Intel Core i5-6400 Logo

Core i5-6400

Jul 2nd, 2015


Geekbench 6 Single-Core

1124

48%

Geekbench 6 Multi-Core

3067

31%

Performance Specifications

The Core i9-11900KF vs Core i5-6400 in core CPU performance specifications

Intel Core i9-11900KF Logo

Core i9-11900KF

Mar 16th, 2021


Cores

8-core

100%

L3 Cache

16 MB

100%


Base Frequency

3.5 GHz

100%

Turbo Frequency

5.3 GHz

100%

Max. DDR4 RAM Speed

3200 MHz

100%

Intel Core i5-6400 Logo

Core i5-6400

Jul 2nd, 2015


Cores

4-core

50%

L3 Cache

6 MB

38%


Base Frequency

2.7 GHz

77%

Turbo Frequency

3.3 GHz

62%

Max. DDR4 RAM Speed

2133 MHz

67%

Specifications

Comparison of all specifications

Intel Core i9-11900KF Logo

Core i9-11900KF

Specifications

Comparison of all specifications

Intel Core i5-6400 Logo

Core i5-6400

General
Mar 16th, 2021
Release DateJul 2nd, 2015
$513.00MSRP
$182.00
Desktop
Segment
Desktop
Intel Socket 1200SocketIntel Socket 1151
Rocket LakeCodenameSkylake
125 WPower Consumption
65 W
Performance
8
Cores4
16
Threads4
3.5 GHz
Base Frequency2.7 GHz
5.3 GHz
Turbo Frequency3.3 GHz
16 MB
L3 Cache6 MB
Other Features
DDR4 @ 3200 MHzRAMDDR4 @ 2133 MHz
NoIntegrated Graphics
HD Graphics 530
Yes
OverclockableNo

Prebuilt Gaming PCs

Our users choose these PCs when going for the Core i9-11900KF or Core i5-6400

Our users choose these PCs when going for the Core i9-11900KF or Core i5-6400

CPUs / Processors

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CPUs Compared for Gaming

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