Home Comparison AMD Ryzen 5 8640U vs AMD Ryzen 5 7645HX

AMD Ryzen 5 8640U vs AMD Ryzen 5 7645HX

AMD Ryzen 5 8640U
VS
AMD Ryzen 5 7645HX
AMD Ryzen 5 8640U
AMD Ryzen 5 7645HX
We compared two laptop CPUs: AMD Ryzen 5 8640U with 6 cores 3.5GHz and AMD Ryzen 5 7645HX with 6 cores 4.0GHz . 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 11 months late
Better graphics card performance
Higher specification of memory (7500 vs 5200)
Larger memory bandwidth (89.6GB/s vs 83.2GB/s)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (30W vs 75W)
AMD Ryzen 5 7645HX 's Advantages
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (4.0GHz vs 3.5GHz)
Larger L3 cache size (32MB vs 16MB)

Score

Benchmark

Cinebench R23 Single Core
AMD Ryzen 5 8640U
1780
AMD Ryzen 5 7645HX +1%
1800
Cinebench R23 Multi Core
AMD Ryzen 5 8640U
11267
AMD Ryzen 5 7645HX +23%
13954
Geekbench 6 Single Core
AMD Ryzen 5 8640U
2419
AMD Ryzen 5 7645HX +12%
2720
Geekbench 6 Multi Core
AMD Ryzen 5 8640U
10350
AMD Ryzen 5 7645HX +15%
11906
AMD Ryzen 5 8640U
VS
AMD Ryzen 5 7645HX

General Parameters

Dec 2023
Release Date
Jan 2023
AMD
Manufacturer
AMD
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Hawk Point
Core Architecture
Zen 4 (Dragon Range)
FP7
Socket
FL1
Radeon 760M
Integrated Graphics
Radeon 610M
Ryzen 5 (Zen 4 (Hawk Point))
Generation
-

Package

25 billions
Transistor Count
-
4 nm
Manufacturing Process
5 nm
15-30 W
Power Consumption
45-75 W
100°C
Peak Operating Temperature
100°C
TSMC
Foundry
-
178 mm²
Die Size
-

CPU Performance

6
Performance Cores
6
12
Performance Core Threads
12
3.5 GHz
Performance Core Base Frequency
4.0 GHz
4.9 GHz
Performance Core Turbo Frequency
5 GHz
6
Total Core Count
6
12
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
35x
Multiplier
40x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
1 MB per core
16 MB shared
L3 Cache
32 MB shared
No
Unlocked Multiplier
Yes
1
SMP
-

Memory Parameters

DDR5-5600, LPDDR5x-7500
Memory Types
DDR5-5200
256 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
89.6 GB/s
Max Memory Bandwidth
83.2 GB/s
No
ECC Memory Support
No

Graphics Card Parameters

true
Integrated Graphics
true
1500 MHz
GPU Base Frequency
1500 MHz
2600 MHz
GPU Max Dynamic Frequency
2200 MHz
384
Shader Units
128
24
Texture Units
8
16
Raster Operation Units
4
6
Execution Units
2
15 W
Power Consumption
15 W
4.06 TFLOPS
Graphics Performance
0.49 TFLOPS

Miscellaneous

AMD Ryzen 5 8640U
Official Website
AMD Ryzen 5 7645HX
4.0
PCIe Version
5.0
20
PCIe Lanes
28

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