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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Ryzen 9 7940H vs Ryzen 7 7840HS

The AMD Ryzen 9 7940H is newer than AMD Ryzen 7 7840HS is around 6% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Laptop CPU Class. The values below were tabulated from a combined 3656 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 9 7940H×AMD Ryzen 7 7840HS+ ADD
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Socket TypeFP7 FP7r2 FP8FP7 FP7r2 FP8
CPU ClassLaptopLaptop
Clockspeed4.0 GHz3.8 GHz
Turbo SpeedUp to 5.2 GHzUp to 5.1 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)
CacheL1: 512KB, L2: 8.0MB, L3: 16MBL1: 512KB, L2: 8.0MB, L3: 16MB
TDP54W54W
Yearly Running Cost$9.86$9.86
Otherw/ Radeon 780M Graphicsw/ Radeon 780M Graphics
First Seen on ChartQ2 2023Q1 2023
# of Samples143642
CPU Rank525544
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)3963(0.0%)3732(-5.8%)
CPU Mark(% diff. to max in group)29168(0.0%)28492(-2.3%)

CPU Mark Rating
As of 24th of January 2026 - Higher results represent better performance
AMD Ryzen 9 7940H
29,168
AMD Ryzen 7 7840HS
28,492
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 24th of January 2026 - Higher results represent better performance
AMD Ryzen 9 7940H
3,963
AMD Ryzen 7 7840HS
3,732
PassMark Software © 2008-2026
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 9 7940H AMD Ryzen 7 7840HS
Max TDP54W54W
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.