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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Ultra X7 358H vs Ultra 7 255H

The Intel Core Ultra X7 358H is newer than Intel Core Ultra 7 255H and is around 12% faster in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, Intel Core Ultra 7 255H uses around 11% more power. The CPUs selected in this comparison belong in different CPU Classes: Laptop, Mobile/Embedded. Consider, selecting CPUs from simliar CPU Class for more apt comparison. The values below were tabulated from a combined 1432 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.

×Intel Core Ultra X7 358H×Intel Core Ultra 7 255H+ ADD
Price Search Online Search Online
Socket TypeFCBGA2540FCBGA2049
CPU ClassLaptopMobile/Embedded
Clockspeed1.9 GHz2.0 GHz
Turbo SpeedUp to 4.8 GHzUp to 5.1 GHz
# of Physical Cores16 (Threads: 16)16 (Threads: 16)
CacheL1: 1,600KB, L2: 24.0MB, L3: 18MBL1: 1,632KB, L2: 20.0MB, L3: 24MB
TDP25W28W
Yearly Running Cost$4.56$5.11
OtherIntel Xe3 Arc Graphics, Intel AI BoostIntel Arc 140T GPU, Intel AI Boost
First Seen on ChartQ4 2025Q1 2025
# of Samples791353
CPU Rank426507
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)4123(-4.7%)4326(0.0%)
CPU Mark(% diff. to max in group)34380(0.0%)30684(-10.8%)

CPU Mark Rating
As of 3rd of April 2026 - Higher results represent better performance
Intel Core Ultra X7 358H
34,380
Intel Core Ultra 7 255H
30,684
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 3rd of April 2026 - Higher results represent better performance
Intel Core Ultra X7 358H
4,123
Intel Core Ultra 7 255H
4,326
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.
Intel Core Ultra X7 358H Intel Core Ultra 7 255H
Max TDP25W28W
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.