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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 i7-7700K @ 4.20GHzIntel Core i7-7800X @ 3.50GHz
Price$346.82 BUY NOW!$509.991
Socket Type LGA 1151FCLGA2066
CPU ClassDesktopDesktop
Clockspeed4.2 GHz3.5 GHz
Turbo SpeedUp to 4.5 GHzUp to 4.0 GHz
# of Physical Cores4 (2 logical cores per physical)6 (2 logical cores per physical)
Max TDP95W140W
Yearly Running Cost$17.34$25.55
First Seen on ChartQ4 2016Q2 2017
# of Samples7855362
Single Thread Rating25822261
CPU Mark1199614633
CPU Mark Rating
As of 20th of October 2019 - Higher results represent better performance
Intel Core i7-7700K @ 4.20GHz
11,996
Intel Core i7-7800X @ 3.50GHz
14,633
CPU Value (CPU Mark / $Price)
As of 20th of October 2019 - Higher results represent better value
Intel Core i7-7700K @ 4.20GHz
34.59
Intel Core i7-7800X @ 3.50GHz
28.69
CPU Single Thread Rating
As of 20th of October 2019 - Higher results represent better performance
Intel Core i7-7700K @ 4.20GHz
2,582
Intel Core i7-7800X @ 3.50GHz
2,261

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 i7-7700K @ 4.20GHzIntel Core i7-7800X @ 3.50GHz
Max TDP95W140W
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.