Intel Core Ultra 7 255HX vs Intel Core Ultra 9 285H
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Intel Core Ultra 9 285H with 16 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 7 255HX 's Advantages
Larger L3 cache size (30MB vs 24MB)
Intel Core Ultra 9 285H 's Advantages
Better graphics card performance
Higher specification of memory (8400 vs 6400)
Higher base frequency (2.9GHz vs 2.4GHz)
Lower TDP (45W vs 55W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255HX
2030
Intel Core Ultra 9 285H
+2%
2074
Cinebench R23 Multi Core
Intel Core Ultra 7 255HX
+15%
25611
Intel Core Ultra 9 285H
22192
Geekbench 6 Single Core
Intel Core Ultra 7 255HX
3102
Intel Core Ultra 9 285H
3073
Geekbench 6 Multi Core
Intel Core Ultra 7 255HX
15879
Intel Core Ultra 9 285H
+11%
17644
Cinebench 2024 Single Core
Intel Core Ultra 7 255HX
+2%
132
Intel Core Ultra 9 285H
129
Cinebench 2024 Multi Core
Intel Core Ultra 7 255HX
+37%
1590
Intel Core Ultra 9 285H
1154
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
285H
FCBGA-2114
Socket
FCBGA-2049
Arc Graphics (4-Cores)
Integrated Graphics
Arc Graphics 140T
Ultra 7 (Arrow Lake)
Generation
-
Package
3 nm
Manufacturing Process
3 nm
45-55 W
Power Consumption
35-45 W
160 W
Max Turbo Power Consumption
115 W
105 °C
Peak Operating Temperature
110 °C
Intel
Foundry
-
CPU Performance
8
Performance Cores
6
8
Performance Core Threads
6
2.4 GHz
Performance Core Base Frequency
2.9 GHz
5.2 GHz
Performance Core Turbo Frequency
5.4 GHz
12
Efficiency Cores
10
12
Efficiency Core Threads
10
1.8 GHz
Efficiency Core Base Frequency
2.7 GHz
4.5 GHz
Efficiency Core Turbo Frequency
4.5 GHz
20
Total Core Count
16
20
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
24
Multiplier
29
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
24 MB shared
Yes
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR5-6400
Memory Types
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
192 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
102.4 GB/s
Yes
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
300 MHz
1850 MHz
GPU Max Dynamic Frequency
2350 MHz
512
Shader Units
1024
32
Texture Units
64
16
Raster Operation Units
32
64
Execution Units
8
14
Power Consumption
35
1.9 TFLOPS
Graphics Performance
4.8 TFLOPS
Miscellaneous
5.0
PCIe Version
5.0
24
PCIe Lanes
28
