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The Core i5-6400 is a much slower gaming CPU than the Core i9-9900K, however, it's a much better value for money, as it's $323.40 cheaper!

Advantages of the Core i5-6400

  • Up to 84% cheaper$61.60 vs $385.00
  • A much better value for money for gaming
  • Consumes up to 32% less energy65 vs 95 Watts

Advantages of the Core i9-9900K

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

Core i5-6400 vs Core i9-9900K for Gaming

The CPU's performance in selected game and settings

Core i5-6400 vs Core i9-9900K 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 i5-6400 vs Core i9-9900K in synthetic CPU benchmarks

Intel Core i5-6400 Logo

Core i5-6400

Jul 2nd, 2015


Geekbench 6 Single-Core

1124

66%

Geekbench 6 Multi-Core

3067

38%

Intel Core i9-9900K Logo

Core i9-9900K

Oct 19th, 2018


Geekbench 6 Single-Core

1703

100%

Geekbench 6 Multi-Core

8060

100%

Performance Specifications

The Core i5-6400 vs Core i9-9900K in core CPU performance specifications

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

75%

Turbo Frequency

3.3 GHz

66%

Max. DDR4 RAM Speed

2133 MHz

80%

Intel Core i9-9900K Logo

Core i9-9900K

Oct 19th, 2018


Cores

8-core

100%

L3 Cache

16 MB

100%


Base Frequency

3.6 GHz

100%

Turbo Frequency

5 GHz

100%

Max. DDR4 RAM Speed

2666 MHz

100%

Intel Core i5-6400 Logo

Core i5-6400

Intel Core i9-9900K Logo

Core i9-9900K

General
Jul 2nd, 2015Release Date
Oct 19th, 2018
$182.00
MSRP$488.00
Desktop
Segment
Desktop
Intel Socket 1151SocketIntel Socket 1151
SkylakeCodenameCoffee Lake
65 W
Power Consumption95 W
Performance
4Cores
8
4Threads
16
2.7 GHzBase Frequency
3.6 GHz
3.3 GHzTurbo Frequency
5.0 GHz
6 MBL3 Cache
16 MB
Other Features
DDR4 @ 2133 MHzRAMDDR4 @ 2666 MHz
HD Graphics 530Integrated GraphicsUHD Graphics 630
NoOverclockable
Yes

Prebuilt Gaming PCs

Our users choose these PCs when going for the Core i5-6400 or Core i9-9900K

Our users choose these PCs when going for the Core i5-6400 or Core i9-9900K

CPUs / Processors

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