Intel Core Ultra 7 251HX vs Intel Core i9 12900HX
CPU · Specs Compare
General Parameters
Release Date
Apr 2026
May 2022
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Alder Lake
Processor Number
251HX
i9-12900HX
Integrated Graphics
Arc Graphics (4-Cores)
UHD Graphics (32EU)
Package
Manufacturing Process
3 nm
10 nm
Socket
FCBGA-2114
BGA-1964
Power Consumption
45-55 W
45-55 W
Max Turbo Power Consumption
160 W
157 W
Peak Operating Temperature
105 °C
100°C
CPU Performance
Performance Cores
6
8
Performance Core Threads
6
16
Performance Core Base Frequency
2.9 GHz
2.3 GHz
Performance Core Turbo Frequency
5.1 GHz
5 GHz
Efficiency Cores
12
8
Efficiency Core Threads
12
8
Efficiency Core Base Frequency
2.5 GHz
1.7 GHz
Efficiency Core Turbo Frequency
4.5 GHz
3.6 GHz
Total Core Count
18
16
Total Thread Count
18
24
Bus Frequency
100 MHz
100 MHz
Multiplier
29
23x
L1 Cache
192 K per core
80 K per core
L2 Cache
2 MB per core
1280 K per core
L3 Cache
30 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
Memory Parameters
Memory Types
DDR5-6400
DDR5-4800, DDR4-3200
Max Memory Size
256 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
102.4 GB/s
76.8 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
1550 MHz
Shader Units
512
256
Texture Units
32
16
Raster Operation Units
16
8
Execution Units
64
32
Power Consumption
14
45 W
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
24
20
Benchmark
Geekbench 6
2,940
2,519
Geekbench 6
15,262
14,447
Cinebench 2024
130
—
Cinebench 2024
1,761
—
Cinebench R23
—
1,904
Cinebench R23
—
20,977
Geekbench 5
—
1,896
Geekbench 5
—
16,154
Blender
—
280
Passmark CPU
—
3,874
Passmark CPU
—
34,632
▲ Specs Compare
Data sourced from official specifications and benchmark tests.