Intel Core Ultra 7 251HX vs Intel Core Ultra 9 285H
CPU · Specs Compare
General Parameters
Release Date
Apr 2026
Jan 2025
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Arrow Lake
Processor Number
251HX
285H
Integrated Graphics
Arc Graphics (4-Cores)
Arc Graphics 140T
Package
Manufacturing Process
3 nm
3 nm
Socket
FCBGA-2114
FCBGA-2049
Power Consumption
45-55 W
35-45 W
Max Turbo Power Consumption
160 W
115 W
Peak Operating Temperature
105 °C
110 °C
CPU Performance
Performance Cores
6
6
Performance Core Threads
6
6
Performance Core Base Frequency
2.9 GHz
2.9 GHz
Performance Core Turbo Frequency
5.1 GHz
5.4 GHz
Efficiency Cores
12
10
Efficiency Core Threads
12
10
Efficiency Core Base Frequency
2.5 GHz
2.7 GHz
Efficiency Core Turbo Frequency
4.5 GHz
4.5 GHz
Total Core Count
18
16
Total Thread Count
18
16
Bus Frequency
100 MHz
100 MHz
Multiplier
29
29
L1 Cache
192 K per core
112 K per core
L2 Cache
2 MB per core
2 MB per core
L3 Cache
30 MB shared
24 MB shared
Unlocked Multiplier
Yes
No
Memory Parameters
Memory Types
DDR5-6400
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Max Memory Size
256 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
102.4 GB/s
102.4 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
300 MHz
GPU Max Dynamic Frequency
1800 MHz
2350 MHz
Shader Units
512
1024
Texture Units
32
64
Raster Operation Units
16
32
Execution Units
64
8
Power Consumption
14
35
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
24
28
Benchmark
Geekbench 6
2,940
3,073
Geekbench 6
15,262
17,644
Cinebench 2024
130
129
Cinebench 2024
1,761
1,154
Cinebench R23
—
2,074
Cinebench R23
—
22,192
Blender
—
223
Passmark CPU
—
4,481
Passmark CPU
—
33,267
▲ Specs Compare
Data sourced from official specifications and benchmark tests.