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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

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

The values for the CPUs below are determined from thousands of PerformanceTest benchmark results and are updated daily.


×Intel Core i5-8600K @ 3.60GHz×Intel Core i5-8400 @ 2.80GHz+ ADD
Price$189.99
BUY NOW!		$109.99
BUY NOW!
Socket TypeFCLGA1151-2FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed3.6 GHz2.8 GHz
Turbo SpeedUp to 4.3 GHzUp to 4.0 GHz
# of Physical Cores6 (Threads: 6)6 (Threads: 6)
Max TDP95W65W
Yearly Running Cost$17.34$11.86
First Seen on ChartQ4 2017Q4 2017
# of Samples24064842
Single Thread Rating26102404
CPU Mark102099239

CPU Mark Rating
As of 26th of June 2022 - Higher results represent better performance
Intel Core i5-8600K @ 3.60GHz
 10,209
Intel Core i5-8400 @ 2.80GHz
 9,239
PassMark Software © 2008-2022
CPU Value (CPU Mark / $Price)
As of 26th of June 2022 - Higher results represent better value
Intel Core i5-8600K @ 3.60GHz
 53.73
Intel Core i5-8400 @ 2.80GHz
 84.00
PassMark Software © 2008-2022
CPU Single Thread Rating
As of 26th of June 2022 - Higher results represent better performance
Intel Core i5-8600K @ 3.60GHz
 2,610
Intel Core i5-8400 @ 2.80GHz
 2,404
PassMark Software © 2008-2022

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
Intel Core i5-8600K @ 3.60GHzIntel Core i5-8400 @ 2.80GHz
Max TDP95W65W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.