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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-9800X @ 3.80GHz vs Intel Core i7-8700K @ 3.70GHz

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

×Intel Core i7-9800X @ 3.80GHz×Intel Core i7-8700K @ 3.70GHz+ ADD
Price$809.951$428.03 BUY NOW!
Socket TypeFCLGA2066FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed3.8 GHz3.7 GHz
Turbo SpeedUp to 4.5 GHzUp to 4.7 GHz
# of Physical Cores8 (2 logical cores per physical)6 (2 logical cores per physical)
Max TDP165W95W
Yearly Running Cost$30.11$17.34
First Seen on ChartQ4 2018Q4 2017
# of Samples759230
Single Thread Rating25282697
CPU Mark1977715936

CPU Mark Rating
As of 25th of February 2020 - Higher results represent better performance
Intel Core i7-9800X @ 3.80GHz
19,777
Intel Core i7-8700K @ 3.70GHz
15,936
CPU Value (CPU Mark / $Price)
As of 25th of February 2020 - Higher results represent better value
Intel Core i7-9800X @ 3.80GHz
24.42
Intel Core i7-8700K @ 3.70GHz
37.23
CPU Single Thread Rating
As of 25th of February 2020 - Higher results represent better performance
Intel Core i7-9800X @ 3.80GHz
2,528
Intel Core i7-8700K @ 3.70GHz
2,697

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 i7-9800X @ 3.80GHzIntel Core i7-8700K @ 3.70GHz
Max TDP165W95W
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.