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Intel i7-1355U vs i7-1255U

The Intel Core i7-1355U is newer than Intel Core i7-1255U also around 9% faster in multi-threaded (CPU Mark) testing, it is around 7% 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 2295 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 i7-1355U×Intel Core i7-1255U+ ADD
Price Search Online Search Online
Socket TypeFCBGA1744FCBGA1744
CPU ClassLaptopLaptop
Clockspeed1.7 GHz1.7 GHz
Turbo SpeedUp to 5.0 GHzUp to 4.7 GHz
# of Physical Cores10 (Threads: 12)10 (Threads: 12)
CacheL1: 928KB, L2: 6.5MB, L3: 12MBL1: 928KB, L2: 6.5MB, L3: 12MB
TDP15W15W
Yearly Running Cost$2.74$2.74
OtherIntel Iris Xe Graphics eligibleIntel Iris Xe Graphics
First Seen on ChartQ2 2023Q1 2022
# of Samples9281367
CPU Value31.731.8
Single Thread Rating(% diff. to max in group)3507(0.0%)3256(-7.1%)
CPU Mark(% diff. to max in group)14849(0.0%)13562(-8.7%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 23rd of November 2024 - Higher results represent better performance
Intel Core i7-1355U
14,849
Intel Core i7-1255U
13,562
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 23rd of November 2024 - Higher results represent better value
Intel Core i7-1355U
31.7
Intel Core i7-1255U
31.8
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 23rd of November 2024 - Higher results represent better performance
Intel Core i7-1355U
3,507
Intel Core i7-1255U
3,256
PassMark Software © 2008-2024
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 i7-1355U Intel Core i7-1255U
Max TDP15W15W
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.