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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i7-12700K vs AMD Ryzen 9 3900XT

The Intel Core i7-12700K is newer than AMD Ryzen 9 3900XT also around 6% faster in multi-threaded (CPU Mark) testing, it is around 32% faster in single-thread testing. However, AMD Ryzen 9 3900XT uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 9102 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 i7-12700K×AMD Ryzen 9 3900XT+ ADD
Price Search Online $375 - BUY
Socket TypeFCLGA1700AM4
CPU ClassDesktopDesktop
Clockspeed3.6 GHz3.8 GHz
Turbo SpeedUp to 5.0 GHzUp to 4.7 GHz
# of Physical Cores12 (Threads: 20)12 (Threads: 24)
CacheL1: 1,024KB, L2: 12.0MB, L3: 25MBL1: 768KB, L2: 6.0MB, L3: 64MB
TDP190W105W
Yearly Running Cost$34.68$19.16
OtherIntel UHD Graphics 770
First Seen on ChartQ4 2021Q3 2020
# of Samples77601342
CPU Value84.487.0
Single Thread Rating(% diff. to max in group)4020(0.0%)2743(-31.8%)
CPU Mark(% diff. to max in group)34515(0.0%)32611(-5.5%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 13th of March 2025 - Higher results represent better performance
Intel Core i7-12700K
34,515
AMD Ryzen 9 3900XT
32,611
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 13th of March 2025 - Higher results represent better value
Intel Core i7-12700K
84.4
AMD Ryzen 9 3900XT
87.0
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 13th of March 2025 - Higher results represent better performance
Intel Core i7-12700K
4,020
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 i7-12700K AMD Ryzen 9 3900XT
Max TDP190W105W
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.