Intel Core Ultra 7 155U vs Intel Core Ultra 7 255H
We compared two laptop CPUs: Intel Core Ultra 7 155U with 12 cores 1.7GHz and Intel Core Ultra 7 255H with 16 cores 2.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 7 155U 's Advantages
Lower TDP (15W vs 28W)
Intel Core Ultra 7 255H 's Advantages
Released 1 years and 1 months late
Higher specification of memory (8400 vs 7467)
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (2.0GHz vs 1.7GHz)
Larger L3 cache size (24MB vs 12MB)
More modern manufacturing process (3nm vs 7nm)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 155U
1730
Intel Core Ultra 7 255H
+17%
2029
Cinebench R23 Multi Core
Intel Core Ultra 7 155U
9875
Intel Core Ultra 7 255H
+107%
20521
Geekbench 6 Single Core
Intel Core Ultra 7 155U
2314
Intel Core Ultra 7 255H
+21%
2823
Geekbench 6 Multi Core
Intel Core Ultra 7 155U
9486
Intel Core Ultra 7 255H
+65%
15662
Cinebench 2024 Single Core
Intel Core Ultra 7 155U
102
Intel Core Ultra 7 255H
+12%
115
Cinebench 2024 Multi Core
Intel Core Ultra 7 155U
549
Intel Core Ultra 7 255H
+100%
1102
General Parameters
Dec 2023
Release Date
Jan 2025
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Meteor Lake
Core Architecture
Arrow Lake
155U
Processor Number
255H
FCBGA-2049
Socket
FCBGA-2049
Arc Graphics (4-Cores)
Integrated Graphics
Arc Graphics 140T
Package
7 nm
Manufacturing Process
3 nm
12-15 W
Power Consumption
20-28 W
57 W
Max Turbo Power Consumption
115 W
110 °C
Peak Operating Temperature
110 °C
CPU Performance
2
Performance Cores
6
4
Performance Core Threads
6
1.7 GHz
Performance Core Base Frequency
2.0 GHz
4.8 GHz
Performance Core Turbo Frequency
5.1 GHz
10
Efficiency Cores
10
10
Efficiency Core Threads
10
1.2 GHz
Efficiency Core Base Frequency
1.5 GHz
3.8 GHz
Efficiency Core Turbo Frequency
4.4 GHz
12
Total Core Count
16
14
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
17
Multiplier
20
112 K per core
L1 Cache
112 K per core
2 MB per core
L2 Cache
2 MB per core
12 MB shared
L3 Cache
24 MB shared
No
Unlocked Multiplier
No
Memory Parameters
LPDDR5-7467,LPDDR5x-7467,DDR5-5600
Memory Types
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
96 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
120 GB/s
Max Memory Bandwidth
-
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
-
1950 MHz
GPU Max Dynamic Frequency
2250 MHz
512
Shader Units
-
32
Texture Units
-
16
Raster Operation Units
-
64
Execution Units
-
14
Power Consumption
-
7680x4320 - 60 Hz
Max Resolution
-
2 TFLOPS
Graphics Performance
-
Miscellaneous
4.0
PCIe Version
5.0
20
PCIe Lanes
28
