Intel Core Ultra 5 338H vs Intel Core Ultra 7 255U
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
255U
Integrated Graphics
Arc B370
Arc Graphics (4-Cores)
Generation
Intel Core Ultra Series 3
-
Package
Manufacturing Process
3 nm
3 nm
Socket
Custom
FCBGA-2049
Power Consumption
15-25 W
12-15 W
Max Turbo Power Consumption
80 W
57 W
Peak Operating Temperature
100 °C
110 °C
CPU Performance
Performance Cores
4
2
Performance Core Threads
4
4
Performance Core Base Frequency
1.9 GHz
2.0 GHz
Performance Core Turbo Frequency
4.7 GHz
5.2 GHz
Efficiency Cores
8
10
Efficiency Core Threads
8
10
Efficiency Core Base Frequency
1.5 GHz
1.7 GHz
Efficiency Core Turbo Frequency
3.6 GHz
4.2 GHz
Total Core Count
12
12
Total Thread Count
12
14
Bus Frequency
100 MHz
100 MHz
Multiplier
19
20
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
12 MB shared
Unlocked Multiplier
No
No
Memory Parameters
Memory Types
LPDDR5X-8533
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Max Memory Size
96 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
153.6 GB/s
-
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
-
GPU Max Dynamic Frequency
2400 MHz
2100 MHz
Shader Units
1024
-
Texture Units
64
-
Raster Operation Units
32
-
Execution Units
10
-
Power Consumption
45
-
Max Resolution
7680 x 4320 @ 60Hz
-
AI Accelerator
Theoretical performance
50 TOPS
-
📊 Benchmark
Cinebench R23
1,988
1,803
Cinebench R23
16,565
11,888
Geekbench 6
2,743
2,582
Geekbench 6
14,448
10,941
Cinebench 2024
123
101
Cinebench 2024
1,000
588