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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-8700 @ 3.20GHz 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 i7-8700 @ 3.20GHz×Intel Core i5-8400 @ 2.80GHz+ ADD
Price$388 BUY NOW!$189.99 BUY NOW!
Socket TypeFCLGA1151-2FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.8 GHz
Turbo SpeedUp to 4.6 GHzUp to 4.0 GHz
# of Physical Cores6 (2 logical cores per physical)6
Max TDP65W65W
Yearly Running Cost$11.86$11.86
First Seen on ChartQ4 2017Q4 2017
# of Samples47283409
Single Thread Rating26602433
CPU Mark134349162

CPU Mark Rating
As of 31st of March 2020 - Higher results represent better performance
Intel Core i7-8700 @ 3.20GHz
13,434
Intel Core i5-8400 @ 2.80GHz
9,162
CPU Value (CPU Mark / $Price)
As of 31st of March 2020 - Higher results represent better value
Intel Core i7-8700 @ 3.20GHz
34.62
Intel Core i5-8400 @ 2.80GHz
48.22
CPU Single Thread Rating
As of 31st of March 2020 - Higher results represent better performance
Intel Core i7-8700 @ 3.20GHz
2,660
Intel Core i5-8400 @ 2.80GHz
2,433

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 i7-8700 @ 3.20GHzIntel 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.