Intel Core Ultra 7 255HX vs Intel Core Ultra 9 275HX
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Intel Core Ultra 9 275HX with 24 cores 2.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 9 275HX 's Advantages
Higher base frequency (2.7GHz vs 2.4GHz)
Larger L3 cache size (36MB vs 30MB)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255HX
2030
Intel Core Ultra 9 275HX
+2%
2090
Cinebench R23 Multi Core
Intel Core Ultra 7 255HX
25611
Intel Core Ultra 9 275HX
+21%
31244
Geekbench 6 Single Core
Intel Core Ultra 7 255HX
+4%
3102
Intel Core Ultra 9 275HX
2959
Geekbench 6 Multi Core
Intel Core Ultra 7 255HX
15879
Intel Core Ultra 9 275HX
+10%
17562
Cinebench 2024 Single Core
Intel Core Ultra 7 255HX
132
Intel Core Ultra 9 275HX
131
Cinebench 2024 Multi Core
Intel Core Ultra 7 255HX
1590
Intel Core Ultra 9 275HX
+11%
1768
General Parameters
Jan 2025
Release Date
Jan 2025
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Arrow Lake
255HX
Processor Number
275HX
FCBGA-2114
Socket
FCBGA-2114
Arc Graphics (4-Cores)
Integrated Graphics
Arc Graphics (4-Cores)
Ultra 7 (Arrow Lake)
Generation
Ultra 9 (Arrow Lake)
Package
3 nm
Manufacturing Process
3 nm
45-55 W
Power Consumption
45-55 W
160 W
Max Turbo Power Consumption
160 W
105 °C
Peak Operating Temperature
105 °C
Intel
Foundry
Intel
CPU Performance
8
Performance Cores
8
8
Performance Core Threads
8
2.4 GHz
Performance Core Base Frequency
2.7 GHz
5.2 GHz
Performance Core Turbo Frequency
5.4 GHz
12
Efficiency Cores
16
12
Efficiency Core Threads
16
1.8 GHz
Efficiency Core Base Frequency
2.1 GHz
4.5 GHz
Efficiency Core Turbo Frequency
4.6 GHz
20
Total Core Count
24
20
Total Thread Count
24
100 MHz
Bus Frequency
100 MHz
24
Multiplier
27
112 K per core
L1 Cache
112 K per core
2 MB per core
L2 Cache
2 MB per core
30 MB shared
L3 Cache
36 MB shared
Yes
Unlocked Multiplier
Yes
1
SMP
1
Memory Parameters
DDR5-6400
Memory Types
DDR5-6400
192 GB
Max Memory Size
192 GB
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
102.4 GB/s
Yes
ECC Memory Support
Yes
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
300 MHz
1850 MHz
GPU Max Dynamic Frequency
1900 MHz
512
Shader Units
512
32
Texture Units
32
16
Raster Operation Units
16
64
Execution Units
64
14
Power Consumption
14
1.9 TFLOPS
Graphics Performance
1.9 TFLOPS
Miscellaneous
5.0
PCIe Version
5.0
24
PCIe Lanes
24
