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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 i7-6700 @ 3.40GHz×Intel Core i5-8400 @ 2.80GHz+ ADD
Price$334.99 BUY NOW!$214 BUY NOW!
Socket TypeLGA 1151FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed3.4 GHz2.8 GHz
Turbo SpeedUp to 4.0 GHzUp to 4.0 GHz
# of Physical Cores4 (2 logical cores per physical)6
Max TDP65W65W
Yearly Running Cost$11.86$11.86
First Seen on ChartQ2 2015Q4 2017
# of Samples63683080
Single Thread Rating21552332
CPU Mark1000311568

CPU Mark Rating
As of 8th of December 2019 - Higher results represent better performance
Intel Core i7-6700 @ 3.40GHz
10,003
Intel Core i5-8400 @ 2.80GHz
11,568
CPU Value (CPU Mark / $Price)
As of 8th of December 2019 - Higher results represent better value
Intel Core i7-6700 @ 3.40GHz
29.86
Intel Core i5-8400 @ 2.80GHz
54.06
CPU Single Thread Rating
As of 8th of December 2019 - Higher results represent better performance
Intel Core i7-6700 @ 3.40GHz
2,155
Intel Core i5-8400 @ 2.80GHz
2,332

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 i7-6700 @ 3.40GHzIntel Core i5-8400 @ 2.80GHz
Max TDP65W65W
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.