Intel Core Ultra 5 125U vs i7 1355U

We compared two laptop CPUs: the 1.3 GHz Intel Core Ultra 5 125U with 12-cores against the 1.7 GHz i7 1355U with 10-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
🔌 Usage Scenario:

Key Differences

What are the key differences between 1355U and 125U
Advantages of Intel Core Ultra 5 125U
  • Newer - released 1 year later
  • More modern manufacturing process – 7 versus 10 nanometers
  • Has 2 more physical cores
  • More than 10° C higher critical temperature
Advantages of Intel Core i7 1355U
  • 16% higher Turbo Boost frequency (5 GHz vs 4.3 GHz)
  • 17% faster in a single-core Geekbench v6 test - 2466 vs 2113 points

Test in Benchmarks

Comparing the performance of CPUs across various tasks

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
File compression 958.1 MB/sec 519.7 MB/sec
Clang compilation 65.6 Klines/sec 58.7 Klines/sec
HTML 5 Browser 223.8 pages/sec 159 pages/sec
PDF Renderer 243.9 Mpixels/sec 219.7 Mpixels/sec
Text processing 213.2 pages/sec 221.5 pages/sec
Background blur 40.3 images/sec 33.4 images/sec
Photo processing 93.4 images/sec 64.2 images/sec
Ray tracing 13.8 Mpixels/sec 12.5 Mpixels/sec
Sources: GeekBench [1], [2] – 18 & 653 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
16758
Integer math 55.8 GOps/sec 50.4 GOps/sec
Floating point math 40.2 GOps/sec 33.9 GOps/sec
Find prime numbers 64M Primes/sec 48M Primes/sec
Random string sorting 20.8M Strings/sec 17.2M Strings/sec
Data encryption 11.7 GBytes/sec 9.6 GBytes/sec
Data compression 188.5 MBytes/sec 152.3 MBytes/sec
Physics 1063 Frames/sec 844 Frames/sec
Extended instructions 10.7B Matrices/sec 8.5B Matrices/sec
Sources: PassMark [3], [4] – 2202 & 3976 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
109.62

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 41.1 PPW 33.9 PPW
Geekbench 6 Multi / Watt 761.3 PPW 503.5 PPW
Passmark CPU Mark / Watt 1396.5 PPW 923.3 PPW
Blender / Watt 9.14 PPW 6.32 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core Ultra 5 125U
No benchmark results yet
Intel Core i7 1355U
DateBenchmarkResult
📘 2026-04-28 (Linode)Geekbench 6 CPU2435 / 7355

Specifications

Full technical specification of Intel Core Ultra 5 125U and i7 1355U

General

Vendor Intel Intel
Released December 14, 2023 January 3, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Meteor Lake Raptor Lake
Model number 125U i7-1355U
Integrated GPU Arc Graphics (4-Cores) Iris Xe Graphics (96EU)
Rival Equivalent - AMD Ryzen 5 8540U -
Successor - Intel Core Ultra 5 225U - Intel Core Ultra 7 255U
Intel CPU rating (169th and 160th place)

CPU

Performance Cores
P-Cores 2 2
P-Threads 4 4
Base Frequency (P) 1.3 GHz 1.7 GHz
Turbo Boost Frequency (P) 4.3 GHz 5 GHz
Efficient Cores
E-Cores 10 8
E-Threads 10 8
Base Frequency (E) 0.8 GHz 1.2 GHz
Turbo Boost Frequency (E) 3.6 GHz 3.7 GHz
Total
Total Cores 12 10
Total Threads 14 12
Bus Frequency 100 MHz 100 MHz
Multiplier 13x 17x
L1 Cache 112K (per core) 80K (per core)
L2 Cache 2MB (per core) 1280K (per core)
L3 Cache 12MB (shared) 12MB (shared)
Unlocked Multiplier No No

Package

Fabrication Process 7 nm 10 nm
TDP (PL1) 12 W 12-15 W (configurable)
Max. Boost TDP (PL2) 57 W 55 W
Socket FCBGA-2049 BGA-1744
Peak Temperature 110°C 100°C

iGPU

Integrated Graphics Arc Graphics (4-Cores) Intel Iris Xe Graphics (96EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1850 MHz 1300 MHz
Shading Units 512 768
TMUs 32 48
ROPs 16 24
Execution Units 64 96
TGP 14 W 15 W
iGPU FLOPS
1.9 TFLOPS
2 TFLOPS

Memory Support

Memory Types - LPDDR5-7467
- LPDDR5x-7467
- DDR5-5600
- DDR5-5200
- DDR4-3200
- LPDDR5-6400
- LPDDR5x-6400
- LPDDR4x-4267
Max. Memory Size 96 GB 96 GB
Memory Channels 2 2
Max. Memory Bandwidth 89.6 GB/s -
ECC Support No No

Misc

Official Site Intel Core Ultra 5 125U official page Intel Core i7 1355U official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
58 (77.3%)
17 (22.7%)
Total votes: 75

Comments

So which CPU will you choose: Intel Core i7 1355U or Ultra 5 125U?
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