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Intel i9-9900B vs AMD Ryzen 5 8540U

Both CPUs were released (or first benchmaked) within the last year, while AMD Ryzen 5 8540U is around 11% faster in multi-threaded (CPU Mark) testing, it is around 28% faster in single-thread testing. However, AMD Ryzen 5 8540U uses substantially less power. The CPUs selected in this comparison belong in different CPU Classes: Desktop, Laptop. Consider, selecting CPUs from simliar CPU Class for more apt comparison.The values below were tabulated from a combined 27 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 i9-9900B @ 3.10GHz×AMD Ryzen 5 8540U+ ADD
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Socket TypeFCLGA1151FP7 FP7r2
CPU ClassDesktopDesktop, Laptop
Clockspeed3.1 GHz3.2 GHz
Turbo SpeedUp to 5.0 GHzUp to 4.9 GHz
# of Physical Cores8 (Threads: 16)6 (Threads: 12)
CacheL1: 512KB, L2: 2.0MB, L3: 16MBL1: 384KB, L2: 6.0MB, L3: 16MB
TDP65W28W
Yearly Running Cost$11.86$5.11
Otherw/ Radeon 740M Graphics
First Seen on ChartQ2 2024Q2 2024
# of Samples819
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)2661(-28.4%)3714(0.0%)
CPU Mark(% diff. to max in group)16660(-10.6%)18641(0.0%)

CPU Mark Rating
As of 1st of December 2024 - Higher results represent better performance
Intel Core i9-9900B @ 3.10GHz
16,660
AMD Ryzen 5 8540U
18,641
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 1st of December 2024 - Higher results represent better performance
Intel Core i9-9900B @ 3.10GHz
2,661
AMD Ryzen 5 8540U
3,714
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 i9-9900B @ 3.10GHz AMD Ryzen 5 8540U
Max TDP65W28W
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.