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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-3970X @ 3.50GHz 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 i7-3970X @ 3.50GHz×Intel Core i7-7700K @ 4.20GHz+ ADD
Price$499.991$448.75
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Socket TypeLGA2011 LGA 1151
CPU ClassDesktopDesktop
Clockspeed3.5 GHz4.2 GHz
Turbo SpeedUp to 4.0 GHzUp to 4.5 GHz
# of Physical Cores6 (Threads: 12)4 (Threads: 8)
Max TDP150W95W
Yearly Running Cost$27.38$17.34
First Seen on ChartQ1 2012Q4 2016
# of Samples3278992
Cross-Platform Rating1862918005
Single Thread Rating18162767
CPU Mark84629723
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 28th of November 2020 - Higher results represent better performance
Intel Core i7-3970X @ 3.50GHz
8,462
Intel Core i7-7700K @ 4.20GHz
9,723
CPU Value (CPU Mark / $Price)
As of 28th of November 2020 - Higher results represent better value
Intel Core i7-3970X @ 3.50GHz
16.93
Intel Core i7-7700K @ 4.20GHz
21.67
CPU Single Thread Rating
As of 28th of November 2020 - Higher results represent better performance
Intel Core i7-3970X @ 3.50GHz
1,816
Intel Core i7-7700K @ 4.20GHz
2,767

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 i7-3970X @ 3.50GHzIntel Core i7-7700K @ 4.20GHz
Max TDP150W95W
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.