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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i9-10900X vs AMD Ryzen 9 3900

The Intel Core i9-10900X @ 3.70GHz is newer than AMD Ryzen 9 3900 and is around -27% slower in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, AMD Ryzen 9 3900 uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 1522 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Core i9-10900X @ 3.70GHz×AMD Ryzen 9 3900+ ADD
Price $471.9 - BUY Search Online
Socket TypeFCLGA2066AM4
CPU ClassDesktopDesktop
Clockspeed3.7 GHz3.1 GHz
Turbo SpeedUp to 4.7 GHzUp to 4.3 GHz
# of Physical Cores10 (Threads: 20)12 (Threads: 24)
CacheL1: 640KB, L2: 10.0MB, L3: 19MBL1: 768KB, L2: 6.0MB, L3: 64MB
TDP165W65W
Yearly Running Cost$30.11$11.86
Other
First Seen on ChartQ4 2019Q4 2019
# of Samples870652
CPU Rank802500
CPU Value47.4139.1
Single Thread Rating(% diff. to max in group)2670(0.0%)2606(-2.4%)
CPU Mark(% diff. to max in group)22364(-26.9%)30611(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of March 2026 - Higher results represent better performance
Intel Core i9-10900X @ 3.70GHz
22,364
AMD Ryzen 9 3900
30,611
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 6th of March 2026 - Higher results represent better value
Intel Core i9-10900X @ 3.70GHz
47.4
AMD Ryzen 9 3900
139.1
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 6th of March 2026 - Higher results represent better performance
Intel Core i9-10900X @ 3.70GHz
2,670
AMD Ryzen 9 3900
2,606
PassMark Software © 2008-2026
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
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 i9-10900X @ 3.70GHz AMD Ryzen 9 3900
Max TDP165W65W
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.