Intel Core Ultra 5 338H vs Intel Core Ultra 7 255HX
CPU · Specs Compare
General Parameters
Release Date
Jan 2026
Jan 2025
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Panther Lake
Arrow Lake
Processor Number
338H
255HX
Integrated Graphics
Arc B370
Arc Graphics (4-Cores)
Generation
Intel Core Ultra Series 3
Ultra 7 (Arrow Lake)
Package
Manufacturing Process
3 nm
3 nm
Socket
Custom
FCBGA-2114
Power Consumption
15-25 W
45-55 W
Max Turbo Power Consumption
80 W
160 W
Peak Operating Temperature
100 °C
105 °C
Foundry
—
Intel
Package
—
FC-LGA18V
CPU Performance
Performance Cores
4
8
Performance Core Threads
4
8
Performance Core Base Frequency
1.9 GHz
2.4 GHz
Performance Core Turbo Frequency
4.7 GHz
5.2 GHz
Efficiency Cores
8
12
Efficiency Core Threads
8
12
Efficiency Core Base Frequency
1.5 GHz
1.8 GHz
Efficiency Core Turbo Frequency
3.6 GHz
4.5 GHz
Total Core Count
12
20
Total Thread Count
12
20
Bus Frequency
100 MHz
100 MHz
Multiplier
19
24
L1 Cache
192 K per core
112 K per core
L2 Cache
2560 K per core
2 MB per core
L3 Cache
18 MB shared
30 MB shared
Unlocked Multiplier
No
Yes
SMP
—
1
Memory Parameters
Memory Types
LPDDR5X-8533
DDR5-6400
Max Memory Size
96 GB
192 GB
Max Memory Channels
2
2
Max Memory Bandwidth
153.6 GB/s
102.4 GB/s
ECC Memory Support
No
Yes
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
300 MHz
GPU Max Dynamic Frequency
2400 MHz
1850 MHz
Shader Units
1024
512
Texture Units
64
32
Raster Operation Units
32
16
Execution Units
10
64
Power Consumption
45
14
Max Resolution
7680 x 4320 @ 60Hz
—
AI Accelerator
Theoretical performance
50 TOPS
—
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
12
24
Benchmark
Cinebench R23
1,988
2,030
Cinebench R23
16,565
25,611
Geekbench 6
2,743
3,102
Geekbench 6
14,448
15,879
Cinebench 2024
123
132
Cinebench 2024
1,000
1,590
▲ Specs Compare
Data sourced from official specifications and benchmark tests.