AMD Ryzen 7 H 255 vs Intel Core Ultra X9 378H
CPU · Specs Compare
General Parameters
Release Date
Aug 2025
Apr 2026
Manufacturer
Amd
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 4 (Hawk Point)
Panther Lake
Integrated Graphics
Radeon 780M
Arc B390
Processor Number
—
378H
Generation
—
Ultra X9 (Panther Lake-H)
Package
Transistor Count
25 billions
—
Manufacturing Process
4 nm
3 nm
Socket
FP8
Intel BGA 2540
Power Consumption
35-54 W
25 W
Peak Operating Temperature
100 °C
100°C
Die Size
178 mm²
—
Max Turbo Power Consumption
—
80 W
Foundry
—
Intel
Package
—
FC-BGA
CPU Performance
Performance Cores
8
4
Performance Core Threads
16
8
Performance Core Base Frequency
3.8 GHz
2 GHz
Performance Core Turbo Frequency
4.9 GHz
5 GHz
Total Core Count
8
16
Total Thread Count
16
16
Bus Frequency
100 MHz
100 MHz
Multiplier
38
20.0
L1 Cache
64 K per core
192 KB per core
L2 Cache
1 MB per core
2.5 MB per core
L3 Cache
16 MB shared
18 MB shared
Unlocked Multiplier
No
No
Efficiency Cores
—
12
Efficiency Core Threads
—
12
Efficiency Core Base Frequency
—
1600 MHz
Efficiency Core Turbo Frequency
—
3.8 GHz
SMP
—
1
Memory Parameters
Memory Types
DDR5-5600,LPDDR5x-7500
LPDDR5X-9600
Max Memory Size
256 GB
96 GB
Max Memory Channels
2
2
Max Memory Bandwidth
120 GB/s
153.6 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
800 MHz
GPU Max Dynamic Frequency
2600 MHz
2500 MHz
Shader Units
768
1024
Texture Units
48
64
Raster Operation Units
32
32
Execution Units
12
12
Power Consumption
15
45
AI Accelerator
Theoretical performance
TOPS
50 TOPS
Miscellaneous
PCIe Version
4.0
5
PCIe Lanes
20
4
Benchmark
Cinebench R23
1,718
—
Cinebench R23
16,387
—
Geekbench 6
2,551
—
Geekbench 6
12,673
—
Cinebench 2024
100
—
Cinebench 2024
923
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.