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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Ryzen 5 PRO 8540U vs Ryzen 5 8645HS

Both CPUs were released (or first benchmaked) within the last year, while AMD Ryzen 5 8645HS is around 20% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, AMD Ryzen 5 8645HS uses around 47% more power. The CPUs selected in this comparison belong in different CPU Classes: Desktop, Laptop, Mobile/Embedded. Consider, selecting CPUs from simliar CPU Class for more apt comparison.The values below were tabulated from a combined 317 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.

×AMD Ryzen 5 PRO 8540U×AMD Ryzen 5 8645HS+ ADD
Price Search Online Search Online
Socket TypeFP7 FP7r2FP7 , FP7r2 , FP
CPU ClassDesktop, Laptop, Mobile/EmbeddedDesktop, Laptop
Clockspeed4.9 GHz4.3 GHz
Turbo SpeedUp to 3.2 GHzUp to 5.0 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)
CacheL1: 384KB, L2: 6.0MB, L3: 16MBL1: 384KB, L2: 6.0MB, L3: 16MB
TDP28W45W
Yearly Running Cost$5.11$8.21
Otherw/ Radeon 740M Graphicsw/ Radeon 760M Graphics
First Seen on ChartQ2 2024Q2 2024
# of Samples52265
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)3567(-2.6%)3664(0.0%)
CPU Mark(% diff. to max in group)18237(-19.8%)22739(0.0%)

CPU Mark Rating
As of 3rd of April 2025 - Higher results represent better performance
AMD Ryzen 5 PRO 8540U
18,237
AMD Ryzen 5 8645HS
22,739
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 3rd of April 2025 - Higher results represent better performance
AMD Ryzen 5 PRO 8540U
3,567
AMD Ryzen 5 8645HS
3,664
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.
AMD Ryzen 5 PRO 8540U AMD Ryzen 5 8645HS
Max TDP28W45W
Power consumption per day (kWh)0.060.09
Running cost per day$0.014$0.022
Power consumption per year (kWh)20.432.9
Running cost per year$5.11$8.21
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.