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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i5-9400T @ 1.80GHz 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 i5-9400T @ 1.80GHz×Intel Core i5-6600K @ 3.50GHz+ ADD
Price$1821$208.67
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Socket TypeFCLGA1151-2FCLGA1151
CPU ClassDesktopDesktop
Clockspeed1.8 GHz3.5 GHz
Turbo SpeedUp to 3.4 GHzUp to 3.9 GHz
# of Physical Cores6 (Threads: 6)4 (Threads: 4)
Max TDP35W91W
Yearly Running Cost$6.39$16.61
First Seen on ChartQ2 2019Q2 2015
# of Samples305558
Cross-Platform Rating1467612286
Single Thread Rating20542325
CPU Mark77826256
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 18th of January 2021 - Higher results represent better performance
Intel Core i5-9400T @ 1.80GHz
 7,782
Intel Core i5-6600K @ 3.50GHz
 6,256
PassMark Software © 2008-2021
CPU Value (CPU Mark / $Price)
As of 18th of January 2021 - Higher results represent better value
Intel Core i5-9400T @ 1.80GHz
 42.76
Intel Core i5-6600K @ 3.50GHz
 29.98
PassMark Software © 2008-2021
CPU Single Thread Rating
As of 18th of January 2021 - Higher results represent better performance
Intel Core i5-9400T @ 1.80GHz
 2,054
Intel Core i5-6600K @ 3.50GHz
 2,325
PassMark Software © 2008-2021

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 i5-9400T @ 1.80GHzIntel Core i5-6600K @ 3.50GHz
Max TDP35W91W
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.