Intel Core Ultra 7 255U vs Intel Core i5 1240U
We compared two laptop CPUs: Intel Core Ultra 7 255U with 12 cores 2.0GHz and Intel Core i5 1240U with 10 cores 1.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 7 255U 's Advantages
Released 2 years and 11 months late
Higher specification of memory (8400 vs 5200)
Higher base frequency (2.0GHz vs 1.1GHz)
More modern manufacturing process (3nm vs 10nm)
Intel Core i5 1240U 's Advantages
Lower TDP (9W vs 15W)
Score
Benchmark
Geekbench 6 Single Core
Intel Core Ultra 7 255U
+16%
2582
Intel Core i5 1240U
2213
Geekbench 6 Multi Core
Intel Core Ultra 7 255U
+44%
10941
Intel Core i5 1240U
7583
General Parameters
Jan 2025
Release Date
Feb 2022
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Alder Lake-U
255U
Processor Number
i5-1240U
FCBGA-2049
Socket
BGA-1781
Arc Graphics (4-Cores)
Integrated Graphics
Iris Xe Graphics G7 (80EU)
Package
3 nm
Manufacturing Process
10 nm
12-15 W
Power Consumption
9 W
57 W
Max Turbo Power Consumption
-
110 °C
Peak Operating Temperature
100 °C
CPU Performance
2
Performance Cores
2
4
Performance Core Threads
-
2.0 GHz
Performance Core Base Frequency
1.1 GHz
5.2 GHz
Performance Core Turbo Frequency
4.4 GHz
10
Efficiency Cores
8
10
Efficiency Core Threads
-
1.7 GHz
Efficiency Core Base Frequency
-
4.2 GHz
Efficiency Core Turbo Frequency
-
12
Total Core Count
10
14
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
20
Multiplier
11x
112 K per core
L1 Cache
80 K per core
2 MB per core
L2 Cache
1280 K per core
12 MB shared
L3 Cache
12 MB shared
No
Unlocked Multiplier
No
Memory Parameters
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Memory Types
LPDDR5-5200, LPDDR4x-4267
128 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
-
Max Memory Bandwidth
76.8 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
-
GPU Base Frequency
300 MHz
2100 MHz
GPU Max Dynamic Frequency
900 MHz
-
Shader Units
640
-
Texture Units
40
-
Raster Operation Units
20
-
Execution Units
80
-
Power Consumption
15 W
-
Graphics Performance
1.41 TFLOPS
