AMD Ryzen 7 7840U vs AMD Ryzen 5 8640HS
CPU · Specs Compare
General Parameters
Release Date
May 2023
Dec 2023
Manufacturer
Amd
AMD
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 4 (Phoenix)
Hawk Point
Integrated Graphics
Radeon 780M
Radeon 760M
Generation
—
Ryzen 5 (Zen 4 (Hawk Point))
Package
Transistor Count
25 billions
25 billions
Manufacturing Process
4 nm
4 nm
Socket
FP8
FP8
Power Consumption
15-30 W
28 W
Peak Operating Temperature
100 °C
100°C
Foundry
—
TSMC
Die Size
—
178 mm²
Package
—
FP8, FP7, FP7r2
CPU Performance
Performance Cores
8
6
Performance Core Threads
16
12
Performance Core Base Frequency
3.3 GHz
3.5 GHz
Performance Core Turbo Frequency
5.1 GHz
4.9 GHz
Total Core Count
8
6
Total Thread Count
16
12
Bus Frequency
100 MHz
100 MHz
Multiplier
33
35x
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
SMP
—
1
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
89.6 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
1500 MHz
GPU Max Dynamic Frequency
2700 MHz
2600 MHz
Shader Units
768
384
Texture Units
48
24
Raster Operation Units
32
16
Execution Units
12
6
Power Consumption
15 W
15 W
Max Resolution
7680x4320 - 60 Hz
7680x4320 - 60 Hz
AI Accelerator
NPU
AMD Ryzen™ AI
—
Theoretical performance
10 TOPS
—
Miscellaneous
PCIe Version
4.0
4.0
PCIe Lanes
20
20
Benchmark
Cinebench R23
1,745
1,724
Cinebench R23
12,789
12,969
Geekbench 6
2,480
2,267
Geekbench 6
11,518
10,369
Blender
227
—
Cinebench 2024
—
99
▲ Specs Compare
Data sourced from official specifications and benchmark tests.