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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i7-5820K @ 3.30GHz vs AMD Ryzen 9 3900X

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


×Intel Core i7-5820K @ 3.30GHz×AMD Ryzen 9 3900X+ ADD
Price$199.991$499
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Socket TypeLGA2011-v3AM4
CPU ClassDesktopDesktop
Clockspeed3.3 GHz3.8 GHz
Turbo SpeedUp to 3.6 GHzUp to 4.6 GHz
# of Physical Cores6 (Threads: 12)12 (Threads: 24)
Max TDP140W105W
Yearly Running Cost$25.55$19.16
First Seen on ChartQ2 2014Q2 2019
# of Samples42886330
Cross-Platform Rating2165267284
Single Thread Rating20132731
CPU Mark979532858
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 20th of January 2021 - Higher results represent better performance
Intel Core i7-5820K @ 3.30GHz
 9,795
AMD Ryzen 9 3900X
 32,858
PassMark Software © 2008-2021
CPU Value (CPU Mark / $Price)
As of 20th of January 2021 - Higher results represent better value
Intel Core i7-5820K @ 3.30GHz
 48.98
AMD Ryzen 9 3900X
 65.85
PassMark Software © 2008-2021
CPU Single Thread Rating
As of 20th of January 2021 - Higher results represent better performance
Intel Core i7-5820K @ 3.30GHz
 2,013
AMD Ryzen 9 3900X
 2,731
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 i7-5820K @ 3.30GHzAMD Ryzen 9 3900X
Max TDP140W105W
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.