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CPU Benchmarks

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Intel i9-9940X vs AMD Ryzen 9 3900XT

The AMD Ryzen 9 3900XT is newer than Intel Core i9-9940X @ 3.30GHz and is around 16% faster in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, Intel Core i9-9940X @ 3.30GHz uses around 44% more power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 1592 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 i9-9940X @ 3.30GHz×AMD Ryzen 9 3900XT+ ADD
Price Search Online $375 - BUY
Socket TypeFCLGA2066AM4
CPU ClassDesktopDesktop
Clockspeed3.3 GHz3.8 GHz
Turbo SpeedUp to 4.5 GHzUp to 4.7 GHz
# of Physical Cores14 (Threads: 28)12 (Threads: 24)
CacheL1: 896KB, L2: 14.0MB, L3: 19MBL1: 768KB, L2: 6.0MB, L3: 64MB
TDP165W105W
Yearly Running Cost$30.11$19.16
Other
First Seen on ChartQ4 2018Q3 2020
# of Samples2021390
CPU Value0.086.9
Single Thread Rating(% diff. to max in group)2626(-4.3%)2743(0.0%)
CPU Mark(% diff. to max in group)28098(-13.8%)32601(0.0%)

CPU Mark Rating
As of 23rd of April 2025 - Higher results represent better performance
Intel Core i9-9940X @ 3.30GHz
28,098
AMD Ryzen 9 3900XT
32,601
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 23rd of April 2025 - Higher results represent better value
Intel Core i9-9940X @ 3.30GHz
NA
AMD Ryzen 9 3900XT
86.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 23rd of April 2025 - Higher results represent better performance
Intel Core i9-9940X @ 3.30GHz
2,626
AMD Ryzen 9 3900XT
2,743
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.
Intel Core i9-9940X @ 3.30GHz AMD Ryzen 9 3900XT
Max TDP165W105W
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.