AMD Ryzen 7 7840HS vs AMD Ryzen 7 H 255
CPU · Specs Compare
General Parameters
Release Date
Apr 2023
Aug 2025
Manufacturer
Amd
Amd
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 4 (Phoenix)
Zen 4 (Hawk Point)
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
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
5.1 GHz
4.9 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
8 MB
1 MB per core
L3 Cache
16 MB
16 MB shared
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
89.6 GB/s
120 GB/s
ECC Memory Support
Yes
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
800 MHz
GPU Max Dynamic Frequency
2700 MHz
2600 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
NPU
AMD Ryzen™ AI
—
Theoretical performance
10 TOPS
TOPS
Miscellaneous
PCIe Version
4.0
4.0
PCIe Lanes
20
20
Benchmark
Geekbench 6
2,575
2,551
Geekbench 6
12,085
12,673
Cinebench R23
—
1,718
Cinebench R23
—
16,387
Cinebench 2024
—
100
Cinebench 2024
—
923
▲ Specs Compare
Data sourced from official specifications and benchmark tests.