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AMD Ryzen 9 6900HX vs Intel i7-1255U

The AMD Ryzen 9 6900HX is newer than Intel Core i7-1255U also around 45% faster in multi-threaded (CPU Mark) testing, it is around 6% faster in single-thread testing. However, Intel Core i7-1255U uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 3438 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 6900HX×Intel Core i7-1255U+ ADD
Price Search Online Search Online
Socket TypeFP7FCBGA1744
CPU ClassLaptopLaptop
Clockspeed3.3 GHz1.7 GHz
Turbo SpeedUp to 4.9 GHzUp to 4.7 GHz
# of Physical Cores8 (Threads: 16)10 (Threads: 12)
CacheL1: 512KB, L2: 4.0MB, L3: 16MBL1: 928KB, L2: 6.5MB, L3: 12MB
TDP45W15W
Yearly Running Cost$8.21$2.74
OtherAMD Radeon 680MIntel Iris Xe Graphics
First Seen on ChartQ2 2022Q1 2022
# of Samples15211917
CPU Value0.031.4
Single Thread Rating(% diff. to max in group)3415(0.0%)3222(-5.7%)
CPU Mark(% diff. to max in group)24442(0.0%)13364(-45.3%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of April 2025 - Higher results represent better performance
AMD Ryzen 9 6900HX
24,442
Intel Core i7-1255U
13,364
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 6th of April 2025 - Higher results represent better value
AMD Ryzen 9 6900HX
NA
Intel Core i7-1255U
31.4
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 6th of April 2025 - Higher results represent better performance
AMD Ryzen 9 6900HX
3,415
Intel Core i7-1255U
3,222
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 9 6900HX Intel Core i7-1255U
Max TDP45W15W
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.