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Intel i9-11900KB vs AMD Ryzen 7 5800X3D

The AMD Ryzen 7 5800X3D is newer than Intel Core i9-11900KB @ 3.30GHz also around 19% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, AMD Ryzen 7 5800X3D uses around 47% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 6966 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×AMD Ryzen 7 5800X3D+ ADD
Price Search Online $648.3 - BUY
Socket TypeFCBGA1787AM4
CPU ClassDesktopDesktop
Clockspeed3.3 GHz3.4 GHz
Turbo SpeedUp to 4.9 GHzUp to 4.5 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)
CacheL1: 640KB, L2: 10.0MB, L3: 24MBL1: 512KB, L2: 4.0MB, L3: 96MB
TDP65W105W
Yearly Running Cost$11.86$19.16
OtherIntel UHD Graphics for 11th Gen Intel Processors
First Seen on ChartQ3 2021Q2 2022
# of Samples906876
CPU Value42.643.7
Single Thread Rating(% diff. to max in group)3313(0.0%)3233(-2.4%)
CPU Mark(% diff. to max in group)22940(-19.0%)28305(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 5th of February 2025 - Higher results represent better performance
Intel Core i9-11900KB @ 3.30GHz
22,940
AMD Ryzen 7 5800X3D
28,305
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 5th of February 2025 - Higher results represent better value
Intel Core i9-11900KB @ 3.30GHz
42.6
AMD Ryzen 7 5800X3D
43.7
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 5th of February 2025 - Higher results represent better performance
Intel Core i9-11900KB @ 3.30GHz
3,313
AMD Ryzen 7 5800X3D
3,233
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 i9-11900KB @ 3.30GHz AMD Ryzen 7 5800X3D
Max TDP65W105W
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.