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Intel Core i5-8600K Vs Core i5-8400 – Which One Is Better?

Intel Core i5-8600K @ 3.60GHz vs Intel Core i5-8400 @ 2.80GHz Comparison

Intel Core i5-8600K Vs Core i5-8400 comparison
Intel Core i5-8600K Vs Core i5-8400 comparison
Info Intel Core i5 8600KIntel Core i5-8400
Price $348.00
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Click The Above Image To Buy: Intel Core i5 8600K

q? encoding=UTF8&MarketPlace=US&ASIN=B0759FGJ3Q&ServiceVersion=20070822&ID=AsinImage&WS=1&Format= SL160 &tag=wepcgamer 20

Click The Above Image To Buy: Intel Core i5 8400

Benefits Of Intel Core i5-8600K

  • Unlocked multiplier
  • 7% higher Turbo Boost frequency (4.3 GHz vs 4 GHz)
  • 14% faster in a single-core Geekbench v5 test – 1208 vs 1057 points

Benefits of Intel Core i5-8400

  • Consumes up to 32% less energy than the Core i5 8600K – 65 vs 95 Watt

Here we are comparing the two biggest gaming processors in Intel Core i5 Series Generation 8th, One is i5-8600K and another one is i5-8400. We will find out which one gives better performance and good benchmarks and is more worthy to buy.

1) Intel Core i5-8600K Review & Performance:

If you talk about the performance of Intel Core i5-8600K then it is still the best processor in the market around the world, because of its unbeatable power and 6 overclockable cores. The base core of this processor is 3.6 GHz which can be boosted with a turbo boost up to 4.3 GHz.


The pricing of this CPU comes in mid-range processors. The price of this Processor in the market right now is $319.95, its amazon official price.

Buy It From Here

Boost Up Clock:

Why you are performing any big work on this process or playing games will just boost up the best clock up to 100 MHz and the Turbo boost will be increased till 300 MHz.

Intel Core i5-8600K Vs Core i7-7740X Comparison
Intel Core i5-8600K Vs Core i7-7740X Comparison

Benchmarks Results:

So there was a big increase by Intel Core i5-9600k In Cinebench Results, on single-core and multi-core performance but the Core i5-8600k was able to increase it only up to 7%, which means the performance of Core i5-9600K is better as compared to Intel Core i5-8600k.

2) Intel Core i5-8400 Review & Performance:

Budget Gaming Processor:

Here is one of the most affordable and budget Intel coffee lake processors which are the Intel Core i5-8400, it’s a 6 Core Intel gaming processor.


It comes with hyperthreading but if you don’t have hyperthreading in it then it will only give up to 6 threads of processing performance.

Core Speed & Cache:

The core speed of this CPU is 2.8 GHz which is quite low but is still powerful. The Turbo speed of this processor is 4 GHz. The cache memory of Intel Core i5-8400 is the same as Intel Core i5-8600K.

Intel Core i5-8400 Vs i7 in Gaming Performance:

The gaming performance of this processor Intel Core i5-8400 or any Intel coffee Lake processor is the same as the top generations of i7 Intel Processors, there is no big difference between them by comparing the performance or Benchmarks for FPS in games.

Cheaper Than AMD Processors:

This intel core i5-8400 is so cheaper than other AMD processors like six-core Ryzen 5. The K series of these processors can easily heat up to 5.1 GHz of turbo speed without any issue or heat up, that’s why it’s still one of the most powerful budget gaming processors.

Comparison By Specifications:

Intel Core i5-8600K @ 3.60GHzIntel Core i5-8400 @ 2.80GHz
Socket TypeFCLGA1151-2FCLGA1151-2
CPU CategoryDesktopDesktop
Clockspeed3.6 GHz2.8 GHz
Turbo SpeedUp to 4.3 GHzUp to 4.0 GHz
Number of Physical Cores6 (Threads: 6)6 (Threads: 6)
Max TDP95W65W
Yearly Running Cost$17.34$11.86
First Seen on ChartQ4 2017Q4 2017
Number of Samples22364401
Cross-Platform Rating1943617618
Single Thread Rating26122410
CPU Score Total101469213

Power Consumptions:

Intel Core i5-8600K @ 3.60GHzIntel Core i5-8400 @ 2.80GHz
Max TDP95W65W
Power consumption per day (kWh)0.20.1
Running cost per day$0.048$0.033
Power consumption per year (kWh)69.347.5
Running cost per year$17.34$11.86



Comparison On DIfferent Games:

  1. BattleField 1

2). Assassin Creed Origins


4). Fortnite

1) I5-8600K Vs Core i5-8400 ( Battle Field 1)

I5-8600K Vs Core i5-8400 ( Battle Field 1)
I5-8600K Vs Core i5-8400 ( Battle Field 1)

2) I5-8600K Vs Core i5-8400 (Assassin Creed Origins)

I5-8600K Vs Core i5-8400 (Assasin Creed Origins)

3) I5-8600K Vs Core i5-8400 (PUBG PC)

3) I5-8600K Vs Core i5-8400 (PUBG PC)

4) I5-8600K Vs Core i5-8400 (Fortnite)

I5-8600K Vs Core i5-8400 (Fortnite)

More Comparisons:

Intel Core i7 8550U vs i7 7700UQ

Intel Core i7 – 8700K Vs AMD Ryzen 7-1800X 

 Intel Core i5-8250U vs i7-7500U – Comparison & Benchmarks

Intel Core i7-8550U vs i5-8250U Full Comparison & Benchmark

Core i9-10900K – 10 Cores 3.7GHz | Gaming Processor Review

Intel Core i5-8250U vs i5-7200U Full Comparison & Benchmark

Acer Nitro 5 Ryzen 5 (5600H) + RTX 3060 Best Budget Laptop

Intel Core i3-8100(3.6Ghz) vs i7-3630QM(2.4Ghz) Comparison

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