AMD Ryzen 7 7840HS vs AMD Ryzen 9 8945HX
CPU · Specs Compare
General Parameters
Release Date
Apr 2023
Apr 2025
Manufacturer
Amd
Amd
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 4 (Phoenix)
Zen 4 (Dragon Range)
Integrated Graphics
Radeon 780M
Radeon 610M
Generation
—
Ryzen 9 (Zen 4 (Dragon Range))
Package
Transistor Count
25 billions
13.14 billions
Manufacturing Process
4 nm
5 nm
Socket
FP8
FL1
Power Consumption
35-54 W
55 W
Peak Operating Temperature
100 °C
100 °C
Max Turbo Power Consumption
—
75 W
Foundry
—
TSMC
Die Size
—
2x71 mm²
I/O Process Size
—
6 nm
I/O Die Size
—
122 mm²
Package
—
µFC-BGAFL1
CPU Performance
Performance Cores
8
16
Performance Core Threads
16
32
Performance Core Base Frequency
3.8 GHz
2.5 GHz
Performance Core Turbo Frequency
5.1 GHz
5.4 GHz
Total Core Count
8
16
Total Thread Count
16
32
Bus Frequency
100 MHz
100 MHz
Multiplier
38
24
L1 Cache
64 K per core
64 K per core
L2 Cache
8 MB
1 MB per core
L3 Cache
16 MB
64 MB shared
Unlocked Multiplier
No
Yes
SMP
—
1
Memory Parameters
Memory Types
DDR5-5600, LPDDR5x-7500
DDR5-5200
Max Memory Size
256 GB
—
Max Memory Channels
2
2
Max Memory Bandwidth
89.6 GB/s
—
ECC Memory Support
Yes
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
—
GPU Max Dynamic Frequency
2700 MHz
2200 MHz
Shader Units
768
—
Texture Units
48
—
Raster Operation Units
32
—
Execution Units
12
—
Power Consumption
15
—
Max Resolution
7680x4320 - 60 Hz
—
AI Accelerator
NPU
AMD Ryzen™ AI
—
Theoretical performance
10 TOPS
—
Miscellaneous
PCIe Version
4.0
5.0
PCIe Lanes
20
28
Benchmark
Geekbench 6
2,575
2,766
Geekbench 6
12,085
16,747
Cinebench R23
—
2,001
Cinebench R23
—
34,973
Cinebench 2024
—
113
Cinebench 2024
—
1,719
Passmark CPU
—
4,035
Passmark CPU
—
55,980
▲ Specs Compare
Data sourced from official specifications and benchmark tests.