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Over 1,000,000 CPUs benchmarked

Intel i9-12900 vs i9-12900K

The Intel Core i9-12900 is newer than Intel Core i9-12900K and is around -18% slower in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, Intel Core i9-12900 uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 11233 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 i9-12900×Intel Core i9-12900K+ ADD
Price $398.97 - BUY $409.99 - BUY
Socket TypeFCLGA1700FCLGA1700
CPU ClassDesktopDesktop
Clockspeed2.4 GHz3.2 GHz
Turbo SpeedUp to 5.1 GHzUp to 5.2 GHz
# of Physical Cores16 (Threads: 24)16 (Threads: 24)
CacheL1: 1,408KB, L2: 14.0MB, L3: 30MBL1: 1,408KB, L2: 14.0MB, L3: 30MB
TDP65W241W
Yearly Running Cost$11.86$43.98
OtherIntel UHD Graphics 770Intel UHD Graphics 770
First Seen on ChartQ1 2022Q4 2021
# of Samples90810325
CPU Rank419319
CPU Value84.4100.4
Single Thread Rating(% diff. to max in group)4003(-3.1%)4130(0.0%)
CPU Mark(% diff. to max in group)33673(-18.2%)41153(0.0%)

CPU Mark Rating
As of 9th of February 2026 - Higher results represent better performance
Intel Core i9-12900
33,673
Intel Core i9-12900K
41,153
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 9th of February 2026 - Higher results represent better value
Intel Core i9-12900
84.4
Intel Core i9-12900K
100.4
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 9th of February 2026 - Higher results represent better performance
Intel Core i9-12900
4,003
Intel Core i9-12900K
4,130
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 i9-12900 Intel Core i9-12900K
Max TDP65W241W
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.