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AMD Ryzen 7 8840U vs Ryzen 9 8945HS

Both CPUs were released (or first benchmaked) within the last year, while AMD Ryzen 9 8945HS is around 19% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, AMD Ryzen 9 8945HS uses around 47% more power. All the CPUs in this comparison belong in the Desktop, Laptop CPU Class.The values below were tabulated from a combined 227 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 7 8840U×AMD Ryzen 9 8945HS+ ADD
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Socket TypeFP7 FP7r2 FP8FP7 FP7r2 FP8
CPU ClassDesktop, LaptopDesktop, Laptop
Clockspeed3.3 GHz4.0 GHz
Turbo SpeedUp to 5.1 GHzUp to 5.2 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)
CacheL1: 512KB, L2: 8.0MB, L3: 16MBL1: 512KB, L2: 8.0MB, L3: 16MB
TDP28W45W
Yearly Running Cost$5.11$8.21
Otherw/ Radeon 780M Graphicsw/ Radeon 780M Graphics
First Seen on ChartQ2 2024Q1 2024
# of Samples86141
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)3688(-4.9%)3877(0.0%)
CPU Mark(% diff. to max in group)23844(-19.1%)29474(0.0%)

CPU Mark Rating
As of 31st of October 2024 - Higher results represent better performance
AMD Ryzen 7 8840U
23,844
AMD Ryzen 9 8945HS
29,474
CPU Single Thread Rating
As of 31st of October 2024 - Higher results represent better performance
AMD Ryzen 7 8840U
3,688
AMD Ryzen 9 8945HS
3,877
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 7 8840U AMD Ryzen 9 8945HS
Max TDP28W45W
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.