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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

CPU Performance Comparison

Performance of selected CPUs can be found below. The values for the CPU are determined from thousands of PerformanceTest benchmark results and is updated daily.


×Intel Core i5-8600K @ 3.60GHz×Intel Core i5-8400 @ 2.80GHz+ ADD
Price$293.51 BUY NOW!$214 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 Cores66
Max TDP95W65W
Yearly Running Cost$17.34$11.86
First Seen on ChartQ4 2017Q4 2017
# of Samples17443067
Single Thread Rating25112332
CPU Mark1267811568

CPU Mark Rating
As of 6th of December 2019 - Higher results represent better performance
Intel Core i5-8600K @ 3.60GHz
 12,678
Intel Core i5-8400 @ 2.80GHz
 11,568
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 6th of December 2019 - Higher results represent better value
Intel Core i5-8600K @ 3.60GHz
 43.20
Intel Core i5-8400 @ 2.80GHz
 54.06
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 6th of December 2019 - Higher results represent better performance
Intel Core i5-8600K @ 3.60GHz
 2,511
Intel Core i5-8400 @ 2.80GHz
 2,332
PassMark Software © 2008-2019

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)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
Running cost per yearabcabc
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.