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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-8700K @ 3.70GHz vs Intel Core i7-7700K @ 4.20GHz

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

×Intel Core i7-8700K @ 3.70GHz×Intel Core i7-7700K @ 4.20GHz+ ADD
Price$315
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$375
BUY NOW!
Socket TypeFCLGA1151-2 LGA 1151
CPU ClassDesktopDesktop
Clockspeed3.7 GHz4.2 GHz
Turbo SpeedUp to 4.7 GHzUp to 4.5 GHz
# of Physical Cores6 (Threads: 12)4 (Threads: 8)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ4 2017Q4 2016
# of Samples1208810204
Single Thread Rating(% diff. to max in group)2759(0.0%)2730(-1.0%)
CPU Mark(% diff. to max in group)13813(0.0%)9670(-30.0%)

CPU Mark Rating
As of 10th of August 2022 - Higher results represent better performance
Intel Core i7-8700K @ 3.70GHz
13,813
Intel Core i7-7700K @ 4.20GHz
9,670
CPU Value (CPU Mark / $Price)
As of 10th of August 2022 - Higher results represent better value
Intel Core i7-8700K @ 3.70GHz
43.85
Intel Core i7-7700K @ 4.20GHz
25.79
CPU Single Thread Rating
As of 10th of August 2022 - Higher results represent better performance
Intel Core i7-8700K @ 3.70GHz
2,759
Intel Core i7-7700K @ 4.20GHz
2,730

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 i7-8700K @ 3.70GHzIntel Core i7-7700K @ 4.20GHz
Max TDP95W95W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.