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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i9-9900X @ 3.50GHz vs Intel Core i7-6900K @ 3.20GHz

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

×Intel Core i9-9900X @ 3.50GHz×Intel Core i7-6900K @ 3.20GHz+ ADD
Price$1009.98 BUY NOW!$725 BUY NOW!
Socket TypeFCLGA2066FCLGA2011-3
CPU ClassDesktopDesktop
Clockspeed3.5 GHz3.2 GHz
Turbo SpeedUp to 4.5 GHzUp to 4.0 GHz
# of Physical Cores10 (2 logical cores per physical)8 (2 logical cores per physical)
Max TDP165W140W
Yearly Running Cost$30.11$25.55
First Seen on ChartQ4 2018Q2 2016
# of Samples103419
Single Thread Rating24772187
CPU Mark2277017578

CPU Mark Rating
As of 25th of February 2020 - Higher results represent better performance
Intel Core i9-9900X @ 3.50GHz
22,770
Intel Core i7-6900K @ 3.20GHz
17,578
CPU Value (CPU Mark / $Price)
As of 25th of February 2020 - Higher results represent better value
Intel Core i9-9900X @ 3.50GHz
22.55
Intel Core i7-6900K @ 3.20GHz
24.25
CPU Single Thread Rating
As of 25th of February 2020 - Higher results represent better performance
Intel Core i9-9900X @ 3.50GHz
2,477
Intel Core i7-6900K @ 3.20GHz
2,187

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 i9-9900X @ 3.50GHzIntel Core i7-6900K @ 3.20GHz
Max TDP165W140W
Power consumption per day (kWh)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
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Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.