AMD Ryzen 7 H 255 vs AMD Ryzen 7 7840HS
CPU · Specs Compare
General Parameters
Release Date
Aug 2025
Apr 2023
Manufacturer
Amd
Amd
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 4 (Hawk Point)
Zen 4 (Phoenix)
Integrated Graphics
Radeon 780M
Radeon 780M
Package
Transistor Count
25 billions
25 billions
Manufacturing Process
4 nm
4 nm
Socket
FP8
FP8
Power Consumption
35-54 W
35-54 W
Peak Operating Temperature
100 °C
100 °C
Die Size
178 mm²
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CPU Performance
Performance Cores
8
8
Performance Core Threads
16
16
Performance Core Base Frequency
3.8 GHz
3.8 GHz
Performance Core Turbo Frequency
4.9 GHz
5.1 GHz
Total Core Count
8
8
Total Thread Count
16
16
Bus Frequency
100 MHz
100 MHz
Multiplier
38
38
L1 Cache
64 K per core
64 K per core
L2 Cache
1 MB per core
8 MB
L3 Cache
16 MB shared
16 MB
Unlocked Multiplier
No
No
Memory Parameters
Memory Types
DDR5-5600,LPDDR5x-7500
DDR5-5600, LPDDR5x-7500
Max Memory Size
256 GB
256 GB
Max Memory Channels
2
2
Max Memory Bandwidth
120 GB/s
89.6 GB/s
ECC Memory Support
No
Yes
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
800 MHz
GPU Max Dynamic Frequency
2600 MHz
2700 MHz
Shader Units
768
768
Texture Units
48
48
Raster Operation Units
32
32
Execution Units
12
12
Power Consumption
15
15
Max Resolution
—
7680x4320 - 60 Hz
AI Accelerator
Theoretical performance
TOPS
10 TOPS
NPU
—
AMD Ryzen™ AI
Miscellaneous
PCIe Version
4.0
4.0
PCIe Lanes
20
20
Benchmark
Cinebench R23
1,718
—
Cinebench R23
16,387
—
Geekbench 6
2,551
2,575
Geekbench 6
12,673
12,085
Cinebench 2024
100
—
Cinebench 2024
923
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.