Intel Core i7 1355U vs Intel Core i7 1255U

Available Intel Core i7 1355U Buy Now ↗
VS
Limited Intel Core i7 1255U Buy Now ↗
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Review

Intel Core i7 1355U
Intel Core i7 1255U
Single-Core Performance
68
62
Multi-Core Performance
22
20
Power Efficiency
61
57
Integrated Graphics
47
47
QucikComparison Final Score
49
45
❖

Key differences

Key distinctions and advantages between Intel Core i7 1355U and Intel Core i7 1255U

Reasons to consider the Intel Core i7 1355U

  • + 2 P-cores + 8 E-cores hybrid design
  • + DDR5 memory support
  • + BGA-1744 socket
  • + Raptor Lake architecture

Reasons to consider the Intel Core i7 1255U

  • + 2 P-cores + 8 E-cores hybrid design
  • + DDR5 memory support
  • + BGA-1744 socket
  • + Alder Lake architecture

Pros & Cons

Intel Core i7 1355U
  • Solid single-core performance
  • Built-in integrated graphics
  • Modern DDR5 memory support
  • Limited multi-threaded performance

"A mid-range Intel Core i7 1355U processor with strong single-core performance (68/100). Suited for everyday productivity."

Intel Core i7 1255U
  • Built-in integrated graphics
  • Modern DDR5 memory support
  • Limited multi-threaded performance

"A mid-range Intel Core i7 1255U processor with strong single-core performance (62/100). Suited for everyday productivity."

Value for Money Beta

Please input up-to-date prices for the selected configurations to get an accurate value-for-money index.

PKRs
PKRs
Intel Core i7 1355U
VS
Intel Core i7 1255U
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VALUE INDEX
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Benchmarks

Blender
Blender CPU
Intel Core i7 1355U +23%
94.87
Intel Core i7 1255U
77.28
Cinebench
Cinebench 2024 (Single)
Intel Core i7 1355U +12%
106
Intel Core i7 1255U
95
Intel Core i7 1355U Intel Core i7 1255U
Cinebench 2024 (Multi) 508 446

Specifications

GeekBench v6
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
Geekbench 6 (Single-Core) 2466 2248
Geekbench 6 (Multi-Core) 7553 7160
File compression 519.7 MB/sec 626.4 MB/sec
Clang compilation 58.7 Klines/sec 49.1 Klines/sec
HTML 5 Browser 159 pages/sec 179.7 pages/sec
PDF Renderer 219.7 Mpixels/sec 201.5 Mpixels/sec
Text processing 221.5 pages/sec 217.7 pages/sec
Background blur 33.4 images/sec 31.6 images/sec
Photo processing 64.2 images/sec 71.1 images/sec
Ray tracing 12.5 Mpixels/sec 9.8 Mpixels/sec
PassMark
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
Passmark CPU (Single-Core) 3401 3151
Passmark CPU (Multi-Core) 14018 12963
Integer math 51.1 GOps/sec 47.6 GOps/sec
Floating point math 34.4 GOps/sec 32.1 GOps/sec
Find prime numbers 49M Primes/sec 39M Primes/sec
Random string sorting 17.4M Strings/sec 16.7M Strings/sec
Data encryption 9.7 GBytes/sec 9.1 GBytes/sec
Data compression 153.9 MBytes/sec 145.1 MBytes/sec
Physics 853 Frames/sec 758 Frames/sec
Extended instructions 8.6B Matrices/sec 8.1B Matrices/sec
Performance Per Watt
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
Cinebench 2024 / Watt 33.9 PPW 29.7 PPW
Geekbench 6 Multi / Watt 503.5 PPW 477.3 PPW
Passmark CPU Mark / Watt 934.5 PPW 864.2 PPW
Blender / Watt 6.32 PPW 5.15 PPW
General
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
Vendor Intel Intel
Released 3-Jan-23 23-Feb-22
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Raptor Lake Alder Lake
Model number i7-1355U i7-1255U
Integrated GPU Iris Xe Graphics (96EU) Iris Xe Graphics (96EU)
Qualcomm Equivalent
CPU
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
P-Cores 2 2
P-Threads 4 4
Base Frequency (P) 1.7 GHz 1.7 GHz
E-Cores 8 8
E-Threads 8 8
Base Frequency (E) 1.2 GHz 1.2 GHz
Total Cores 10 10
Total Threads 12 12
Multiplier 17x 17x
L1 Cache 80K (per core) 80K (per core)
L2 Cache 1280K (per core) 1280K (per core)
Unlocked Multiplier No No
Package
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
Transistors
Fabrication Process 10 nm 10 nm
TDP (PL1) 12-15 W (configurable) 12-15 W (configurable)
Socket BGA-1744 BGA-1744
Peak Temperature 100°C 100°C
iGPU
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
Integrated Graphics Intel Iris Xe Graphics (96EU) Intel Iris Xe Graphics (96EU)
GPU Boost Clock 1300 MHz 1250 MHz
Shading Units 768 768
TMUs 48 48
ROPs 24 24
Execution Units 96 96
iGPU FLOPS 2 TFLOPS 1.9 TFLOPS
Memory Support
Specification Intel Core i7 1355U ↗ Intel Core i7 1255U ↗
Memory Types #NAME? #NAME?
Max. Memory Size 96 GB 64 GB
Memory Channels 2 2
Max. Memory Bandwidth
ECC Support No No

Comparison with Competitors

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