Intel Core Ultra 7 251HX vs Intel Core Ultra 5 338H
CPU · Specs Compare
General Parameters
Release Date
Apr 2026
Jan 2026
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Panther Lake
Processor Number
251HX
338H
Integrated Graphics
Arc Graphics (4-Cores)
Arc B370
Generation
—
Intel Core Ultra Series 3
Package
Manufacturing Process
3 nm
3 nm
Socket
FCBGA-2114
Custom
Power Consumption
45-55 W
15-25 W
Max Turbo Power Consumption
160 W
80 W
Peak Operating Temperature
105 °C
100 °C
CPU Performance
Performance Cores
6
4
Performance Core Threads
6
4
Performance Core Base Frequency
2.9 GHz
1.9 GHz
Performance Core Turbo Frequency
5.1 GHz
4.7 GHz
Efficiency Cores
12
8
Efficiency Core Threads
12
8
Efficiency Core Base Frequency
2.5 GHz
1.5 GHz
Efficiency Core Turbo Frequency
4.5 GHz
3.6 GHz
Total Core Count
18
12
Total Thread Count
18
12
Bus Frequency
100 MHz
100 MHz
Multiplier
29
19
L1 Cache
192 K per core
192 K per core
L2 Cache
2 MB per core
2560 K per core
L3 Cache
30 MB shared
18 MB shared
Unlocked Multiplier
Yes
No
Memory Parameters
Memory Types
DDR5-6400
LPDDR5X-8533
Max Memory Size
256 GB
96 GB
Max Memory Channels
2
2
Max Memory Bandwidth
102.4 GB/s
153.6 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
800 MHz
GPU Max Dynamic Frequency
1800 MHz
2400 MHz
Shader Units
512
1024
Texture Units
32
64
Raster Operation Units
16
32
Execution Units
64
10
Power Consumption
14
45
Max Resolution
—
7680 x 4320 @ 60Hz
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
24
12
AI Accelerator
Theoretical performance
—
50 TOPS
Benchmark
Geekbench 6
2,940
2,743
Geekbench 6
15,262
14,448
Cinebench 2024
130
123
Cinebench 2024
1,761
1,000
Cinebench R23
—
1,988
Cinebench R23
—
16,565
▲ Specs Compare
Data sourced from official specifications and benchmark tests.