Home Comparison AMD Ryzen 5 8640U vs AMD Ryzen 7 7840U

AMD Ryzen 5 8640U vs AMD Ryzen 7 7840U

AMD Ryzen 5 8640U
VS
AMD Ryzen 7 7840U
AMD Ryzen 5 8640U
AMD Ryzen 7 7840U
We compared two laptop CPUs: AMD Ryzen 5 8640U with 6 cores 3.5GHz and AMD Ryzen 7 7840U with 8 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 5 8640U 's Advantages
Released 7 months late
Higher base frequency (3.5GHz vs 3.3GHz)
AMD Ryzen 7 7840U 's Advantages
Better graphics card performance

Score

Benchmark

Cinebench R23 Single Core
AMD Ryzen 5 8640U +2%
1780
AMD Ryzen 7 7840U
1745
Cinebench R23 Multi Core
AMD Ryzen 5 8640U
11267
AMD Ryzen 7 7840U +13%
12789
Geekbench 6 Single Core
AMD Ryzen 5 8640U
2419
AMD Ryzen 7 7840U +2%
2480
Geekbench 6 Multi Core
AMD Ryzen 5 8640U
10350
AMD Ryzen 7 7840U +11%
11518
AMD Ryzen 5 8640U
VS
AMD Ryzen 7 7840U

General Parameters

Dec 2023
Release Date
May 2023
AMD
Manufacturer
Amd
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Hawk Point
Core Architecture
Zen 4 (Phoenix)
FP7
Socket
FP8
Radeon 760M
Integrated Graphics
Radeon 780M
Ryzen 5 (Zen 4 (Hawk Point))
Generation
-

Package

25 billions
Transistor Count
25 billions
4 nm
Manufacturing Process
4 nm
15-30 W
Power Consumption
15-30 W
100°C
Peak Operating Temperature
100 °C
TSMC
Foundry
-
178 mm²
Die Size
-

CPU Performance

6
Performance Cores
8
12
Performance Core Threads
16
3.5 GHz
Performance Core Base Frequency
3.3 GHz
4.9 GHz
Performance Core Turbo Frequency
5.1 GHz
6
Total Core Count
8
12
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
35x
Multiplier
33
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
8 MB
16 MB shared
L3 Cache
16 MB
No
Unlocked Multiplier
No
1
SMP
-

Memory Parameters

DDR5-5600, LPDDR5x-7500
Memory Types
DDR5-5600, LPDDR5x-7500
256 GB
Max Memory Size
256 GB
2
Max Memory Channels
2
89.6 GB/s
Max Memory Bandwidth
89.6 GB/s
No
ECC Memory Support
No

Graphics Card Parameters

true
Integrated Graphics
true
1500 MHz
GPU Base Frequency
800 MHz
2600 MHz
GPU Max Dynamic Frequency
2700 MHz
384
Shader Units
768
24
Texture Units
48
16
Raster Operation Units
32
6
Execution Units
12
15 W
Power Consumption
15 W
-
Max Resolution
7680x4320 - 60 Hz
4.06 TFLOPS
Graphics Performance
4.15 TFLOPS

AI Accelerator

-
NPU
AMD Ryzen™ AI
-
Theoretical performance
10 TOPS

Miscellaneous

AMD Ryzen 5 8640U
Official Website
AMD Ryzen 7 7840U
4.0
PCIe Version
4.0
20
PCIe Lanes
20

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