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AMD Ryzen 9 3900XT vs Intel i9-10900

The AMD Ryzen 9 3900XT is newer than Intel Core i9-10900 @ 2.80GHz and is significantly faster in multi-threaded (CPU Mark) testing. The AMD Ryzen 9 3900XT is around -8% slower in single-thread testing. Also, AMD Ryzen 9 3900XT uses around 47% more power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 2565 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.

×AMD Ryzen 9 3900XT×Intel Core i9-10900 @ 2.80GHz+ ADD
Price $389.99 - BUY $699 - BUY
Socket TypeAM4FCLGA1200
CPU ClassDesktopDesktop
Clockspeed3.8 GHz2.8 GHz
Turbo SpeedUp to 4.7 GHzUp to 5.2 GHz
# of Physical Cores12 (Threads: 24)10 (Threads: 20)
CacheL1: 768KB, L2: 6.0MB, L3: 64MBL1: 640KB, L2: 2.5MB, L3: 20MB
TDP105W65W
Yearly Running Cost$19.16$11.86
OtherIntel UHD Graphics 630
First Seen on ChartQ3 2020Q2 2020
# of Samples15181047
CPU Value83.427.4
Single Thread Rating(% diff. to max in group)2741(-8.5%)2995(0.0%)
CPU Mark(% diff. to max in group)32519(0.0%)19170(-41.1%)

CPU Mark Rating
As of 16th of November 2025 - Higher results represent better performance
AMD Ryzen 9 3900XT
32,519
Intel Core i9-10900 @ 2.80GHz
19,170
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 16th of November 2025 - Higher results represent better value
AMD Ryzen 9 3900XT
83.4
Intel Core i9-10900 @ 2.80GHz
27.4
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 16th of November 2025 - Higher results represent better performance
AMD Ryzen 9 3900XT
2,741
Intel Core i9-10900 @ 2.80GHz
2,995
PassMark Software © 2008-2025
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.
AMD Ryzen 9 3900XT Intel Core i9-10900 @ 2.80GHz
Max TDP105W65W
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.