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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i5-6400 @ 2.70GHz vs Intel Core i5-6600K @ 3.50GHz

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

×Intel Core i5-6400 @ 2.70GHz×Intel Core i5-6600K @ 3.50GHz+ ADD
Price$135
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$289.951
Socket TypeLGA 1151FCLGA1151
CPU ClassDesktopDesktop
Clockspeed2.7 GHz3.5 GHz
Turbo SpeedUp to 3.3 GHzUp to 3.9 GHz
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDP65W91W
Yearly Running Cost$11.86$16.61
First Seen on ChartQ2 2015Q2 2015
# of Samples32765356
Cross-Platform Rating1012312169
Single Thread Rating19692311
CPU Mark51386254
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 7th of June 2020 - Higher results represent better performance
Intel Core i5-6400 @ 2.70GHz
5,138
Intel Core i5-6600K @ 3.50GHz
6,254
CPU Value (CPU Mark / $Price)
As of 7th of June 2020 - Higher results represent better value
Intel Core i5-6400 @ 2.70GHz
38.06
Intel Core i5-6600K @ 3.50GHz
21.57
CPU Single Thread Rating
As of 7th of June 2020 - Higher results represent better performance
Intel Core i5-6400 @ 2.70GHz
1,969
Intel Core i5-6600K @ 3.50GHz
2,311

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 i5-6400 @ 2.70GHzIntel Core i5-6600K @ 3.50GHz
Max TDP65W91W
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.