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Intel i9-11900KB vs i9-9900KS

The Intel Core i9-11900KB @ 3.30GHz is newer than Intel Core i9-9900KS @ 4.00GHz also around 15% faster in multi-threaded (CPU Mark) testing, it is around 8% faster in single-thread testing. However, Intel Core i9-11900KB @ 3.30GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 602 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 i9-11900KB @ 3.30GHz×Intel Core i9-9900KS @ 4.00GHz+ ADD
Price Search Online $399.99 - BUY
Socket TypeFCBGA1787FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed3.3 GHz4.0 GHz
Turbo SpeedUp to 4.9 GHzUp to 5.0 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)
CacheL1: 640KB, L2: 10.0MB, L3: 24MBL1: 512KB, L2: 2.0MB, L3: 16MB
TDP65W127W
Yearly Running Cost$11.86$23.18
OtherIntel UHD Graphics for 11th Gen Intel ProcessorsIntel UHD Graphics 630
First Seen on ChartQ3 2021Q4 2019
# of Samples83519
CPU Value42.548.7
Single Thread Rating(% diff. to max in group)3308(0.0%)3036(-8.2%)
CPU Mark(% diff. to max in group)22917(0.0%)19470(-15.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 21st of November 2024 - Higher results represent better performance
Intel Core i9-11900KB @ 3.30GHz
22,917
Intel Core i9-9900KS @ 4.00GHz
19,470
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 21st of November 2024 - Higher results represent better value
Intel Core i9-11900KB @ 3.30GHz
42.5
Intel Core i9-9900KS @ 4.00GHz
48.7
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of November 2024 - Higher results represent better performance
Intel Core i9-11900KB @ 3.30GHz
3,308
Intel Core i9-9900KS @ 4.00GHz
3,036
PassMark Software © 2008-2024
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 i9-11900KB @ 3.30GHz Intel Core i9-9900KS @ 4.00GHz
Max TDP65W127W
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.