Home > CPU Comparison > Core Ultra 7 155U or Core Ultra 5 125U: what's better?

Intel Core Ultra 7 155U vs Ultra 5 125U

50 out of 100
Intel Core Ultra 7 155U
VS
48 out of 100
Intel Core Ultra 5 125U
Intel Core Ultra 7 155U
Intel Core Ultra 5 125U

We compared two 12-core laptop CPUs: the 1.7 GHz Intel Core Ultra 7 155U against the 1.3 GHz Ultra 5 125U. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments (5)

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.
๐Ÿ”Œ Usage Scenario:

Key Differences

What are the key differences between 125U and 155U
Advantages of Intel Core Ultra 7 155U
  • 12% higher Turbo Boost frequency (4.8 GHz vs 4.3 GHz)
  • 10% faster in a single-core Geekbench v6 test - 2315 vs 2113 points

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core Ultra 7 155U
vs
Core Ultra 5 125U

Cinebench

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

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 1000 MB/sec 958.1 MB/sec
Clang compilation 62.5 Klines/sec 65.6 Klines/sec
HTML 5 Browser 241.5 pages/sec 223.8 pages/sec
PDF Renderer 264.8 Mpixels/sec 243.9 Mpixels/sec
Text processing 233.2 pages/sec 213.2 pages/sec
Background blur 39 images/sec 40.3 images/sec
Photo processing 97.3 images/sec 93.4 images/sec
Ray tracing 13.2 Mpixels/sec 13.8 Mpixels/sec
Sources: GeekBench [1], [2] โ€“ 21 & 18 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 56.8 GOps/sec 55.8 GOps/sec
Floating point math 39.6 GOps/sec 40.2 GOps/sec
Find prime numbers 65M Primes/sec 64M Primes/sec
Random string sorting 19.5M Strings/sec 20.8M Strings/sec
Data encryption 11.2 GBytes/sec 11.7 GBytes/sec
Data compression 174.6 MBytes/sec 188.5 MBytes/sec
Physics 1076 Frames/sec 1063 Frames/sec
Extended instructions 9.7B Matrices/sec 10.7B Matrices/sec
Sources: PassMark [3], [4] โ€“ 1857 & 2202 samples

Blender

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

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 36.6 PPW 41.1 PPW
Geekbench 6 Multi / Watt 632.4 PPW 761.3 PPW
Passmark CPU Mark / Watt 1076.1 PPW 1396.5 PPW
Blender / Watt 6.65 PPW 9.14 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 7 155U
DateBenchmarkResult
๐Ÿ“˜ 2025-03-17 (KNOTs_007)Cinebench 2024101 / 997
๐Ÿ“˜ 2025-02-14 (hanswurst)Cinebench 202490 / 348
๐Ÿ“˜ 2024-07-18 (Makikou)Cinebench 202494 / 333
Add View all (3)
Intel Core Ultra 5 125U
No benchmark results yet
Add

Specifications

Full technical specification of Intel Core Ultra 7 155U and Ultra 5 125U

General

Vendor Intel Intel
Released December 14, 2023 December 14, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Meteor Lake Meteor Lake
Model number 155U 125U
Integrated GPU Arc Graphics (4-Cores) Arc Graphics (4-Cores)
Rival Equivalent - AMD Ryzen 7 8840U - AMD Ryzen 5 8540U
Successor - Intel Core Ultra 7 255U - Intel Core Ultra 5 225U
Intel CPU rating (150th and 169th place)

CPU

Performance Cores
P-Cores 2 2
P-Threads 4 4
Base Frequency (P) 1.7 GHz 1.3 GHz
Turbo Boost Frequency (P) 4.8 GHz 4.3 GHz
Efficient Cores
E-Cores 10 10
E-Threads 10 10
Base Frequency (E) 1.2 GHz 0.8 GHz
Turbo Boost Frequency (E) 3.8 GHz 3.6 GHz
Total
Total Cores 12 12
Total Threads 14 14
Bus Frequency 100 MHz 100 MHz
Multiplier 17x 13x
L1 Cache 112K (per core) 112K (per core)
L2 Cache 2MB (per core) 2MB (per core)
L3 Cache 12MB (shared) 12MB (shared)
Unlocked Multiplier No No

Package

Fabrication Process 7 nm 7 nm
TDP (PL1) 12-15 W (configurable) 12 W
Max. Boost TDP (PL2) 57 W 57 W
Socket FCBGA-2049 FCBGA-2049
Peak Temperature 110ยฐC 110ยฐC

iGPU

Integrated Graphics Arc Graphics (4-Cores) Arc Graphics (4-Cores)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1950 MHz 1850 MHz
Shading Units 512 512
TMUs 32 32
ROPs 16 16
Execution Units 64 64
TGP 14 W 14 W
iGPU FLOPS
Core Ultra 7 155U +5%
2 TFLOPS
Core Ultra 5 125U
1.9 TFLOPS
See: Intel Arc iGPU (4-Cores) benchmarks

Memory Support

Memory Types - LPDDR5-7467
- LPDDR5x-7467
- DDR5-5600		 - LPDDR5-7467
- LPDDR5x-7467
- DDR5-5600
Max. Memory Size 96 GB 96 GB
Memory Channels 2 2
Max. Memory Bandwidth 89.6 GB/s 89.6 GB/s
ECC Support No No

Misc

Official Site Intel Core Ultra 7 155U official page Intel Core Ultra 5 125U official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
19 (15.2%)
106 (84.8%)
Total votes: 125

Competitors

1. Intel Core Ultra 7 155U vs Intel Core Ultra 7 165U
2. Intel Core Ultra 7 155U vs Intel Core i7 1355U (1)
3. Intel Core Ultra 7 155U vs AMD Ryzen 7 8840U (3)
4. Intel Core Ultra 5 125U vs AMD Ryzen 5 8540U
5. Intel Core Ultra 5 125U vs Intel Core Ultra 5 125H
6. Intel Core Ultra 5 125U vs Intel Core i7 1355U
7. Intel Core Ultra 5 125U vs Intel Core i5 1235U
8. Intel Core Ultra 5 125U vs Intel Core i5 1335U (1)
9. Intel Core Ultra 5 125U vs Apple M2 (2)
10. Intel Core Ultra 5 125U vs AMD Ryzen 5 8640U
Compare other CPUs (460+)

Comments

So which CPU will you choose: Intel Core Ultra 5 125U or Ultra 7 155U?
๐ŸŒ Register your profile and become part of NanoReview community!
Avatar
Eta April 2, 2025 at 05:05 AM
After seeing this thread 2 weeks ago I purchased 125u probook Instead of the planned 155u ...I saved my self 350usd which I used to upgrade the ram from 8GB to 32GB 5600 and raised the SSD from 512GB to 1TB. Though performance can't beat my former AMD 5825U on LLM which is twice as fast but I'm enjoying battery performance features of the efficient chipset. I can actually do 8 hours of a day's job on Linux kubuntu without charging and still be left with 25% Thanks all for the comments
+1 Reply
Avatar
CharcoalChicken January 2, 2025 at 05:27 AM
The marketing hype for the Ultra 7 155U has been overcooked, so the Ultra 5 125U has my money (see what I did there) ๐Ÿคฃ
+12 Reply
Avatar
Fried chicken February 16, 2025 at 11:02 AM
Don't you think intel shall remove the 125h and the 155u. Why not make the i3 a 7 watt processor, i5 a 15w processor, an i7 a 30w processor, and make the i9 a 45w+ processor.
+9 Reply
Avatar
CrispyChicken April 16, 2024 at 07:46 PM
The Ultra 7 155U doesn't seem worth the extra cost over the Ultra 5 125U. The same core count, and similar performance, just go for the 125U. It seems like the same chip, with only a bit higher boost clock speeds, which could be more challenging to cool.
+91 Reply
Avatar
ExtraCrispyChicken December 11, 2024 at 06:05 AM
The ultra 7 appears to be the exact same thing as the ultra 5, but the ultra 7 can boost higher if it has more power, but most of the time it is capped at 15w. So there is no difference. Just buy the core ultra 5 and save some money.
+15 Reply
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