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Intel i9-11900F vs i9-11900K

The Intel Core i9-11900F @ 2.50GHz is newer than Intel Core i9-11900K @ 3.50GHz, while Intel Core i9-11900K @ 3.50GHz is around 12% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, Intel Core i9-11900F @ 2.50GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 3430 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 i9-11900F @ 2.50GHz×Intel Core i9-11900K @ 3.50GHz+ ADD
Price $358.98 - BUY $239.99 - BUY
Socket TypeFCLGA1200FCLGA1200
CPU ClassDesktopDesktop
Clockspeed2.5 GHz3.5 GHz
Turbo SpeedUp to 5.2 GHzUp to 5.2 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)
CacheL1: 640KB, L2: 4.0MB, L3: 16MBL1: 640KB, L2: 4.0MB, L3: 16MB
TDP65W125W
Yearly Running Cost$11.86$22.81
Other
First Seen on ChartQ2 2021Q1 2021
# of Samples3003130
CPU Value61.8104.7
Single Thread Rating(% diff. to max in group)3407(-3.0%)3512(0.0%)
CPU Mark(% diff. to max in group)22187(-11.7%)25119(0.0%)

CPU Mark Rating
As of 5th of February 2025 - Higher results represent better performance
Intel Core i9-11900F @ 2.50GHz
22,187
Intel Core i9-11900K @ 3.50GHz
25,119
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 5th of February 2025 - Higher results represent better value
Intel Core i9-11900F @ 2.50GHz
61.8
Intel Core i9-11900K @ 3.50GHz
104.7
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 5th of February 2025 - Higher results represent better performance
Intel Core i9-11900F @ 2.50GHz
3,407
Intel Core i9-11900K @ 3.50GHz
3,512
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 i9-11900F @ 2.50GHz Intel Core i9-11900K @ 3.50GHz
Max TDP65W125W
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.