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Over 1,000,000 CPUs benchmarked

AMD Ryzen 7 PRO 7840U vs Ryzen 9 7940HS

The AMD Ryzen 9 7940HS is newer than AMD Ryzen 7 PRO 7840U also around 18% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, AMD Ryzen 7 PRO 7840U uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 1195 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 PRO 7840U×AMD Ryzen 9 7940HS+ ADD
Price Search Online Search Online
Socket TypeNA2FP7 FP7r2 FP8
CPU ClassLaptopLaptop
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
TDP30W54W
Yearly Running Cost$5.48$9.86
Otherw/ Radeon 780M Graphicsw/ Radeon 780M Graphics
First Seen on ChartQ2 2023Q2 2023
# of Samples243952
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)3712(-4.9%)3903(0.0%)
CPU Mark(% diff. to max in group)25005(-17.8%)30409(0.0%)
2 - Information not available. Do you know? Notify Us.

CPU Mark Rating
As of 26th of July 2024 - Higher results represent better performance
AMD Ryzen 7 PRO 7840U
25,005
AMD Ryzen 9 7940HS
30,409
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 26th of July 2024 - Higher results represent better performance
AMD Ryzen 7 PRO 7840U
3,712
AMD Ryzen 9 7940HS
3,903
PassMark Software © 2008-2024

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
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 PRO 7840UAMD Ryzen 9 7940HS
Max TDP30W54W
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.