AMD Ryzen 5 8640HS vs AMD Ryzen 9 9955HX
We compared two laptop CPUs: AMD Ryzen 5 8640HS with 6 cores 3.5GHz and AMD Ryzen 9 9955HX with 16 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD Ryzen 5 8640HS Advantages
Better graphics card performance
Higher specification of memory (7500 vs 5600)
Higher base frequency (3.5GHz vs 2.5GHz)
Lower TDP (28W vs 75W)
AMD Ryzen 9 9955HX Advantages
Released 1 years and 1 months late
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (64MB vs 16MB)
Score
Benchmark
Cinebench R23 Single Core
AMD Ryzen 5 8640HS
1724
AMD Ryzen 9 9955HX
+24%
2154
Cinebench R23 Multi Core
AMD Ryzen 5 8640HS
12969
AMD Ryzen 9 9955HX
+176%
35887
Geekbench 6 Single Core
AMD Ryzen 5 8640HS
2267
AMD Ryzen 9 9955HX
+42%
3228
Geekbench 6 Multi Core
AMD Ryzen 5 8640HS
10369
AMD Ryzen 9 9955HX
+88%
19559
Cinebench 2024 Single Core
AMD Ryzen 5 8640HS
99
AMD Ryzen 9 9955HX
+30%
129
General Parameters
Dec 2023
Release Date
Jan 2025
AMD
Manufacturer
Amd
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Hawk Point
Core Architecture
Zen 5 (Fire Range)
-
Processor Number
9955HX
FP8
Socket
FL1
Radeon 760M
Integrated Graphics
Radeon 610M
Ryzen 5 (Zen 4 (Hawk Point))
Generation
-
Package
25 billions
Transistor Count
-
4 nm
Manufacturing Process
4 nm
28 W
Power Consumption
55-75 W
-
Max Turbo Power Consumption
101 W
100°C
Peak Operating Temperature
100 °C
TSMC
Foundry
-
178 mm²
Die Size
-
CPU Performance
6
Performance Cores
16
12
Performance Core Threads
32
3.5 GHz
Performance Core Base Frequency
2.5 GHz
4.9 GHz
Performance Core Turbo Frequency
5.4 GHz
6
Total Core Count
16
12
Total Thread Count
32
100 MHz
Bus Frequency
100 MHz
35x
Multiplier
25
64 K per core
L1 Cache
80 K per core
1 MB per core
L2 Cache
1 MB per core
16 MB shared
L3 Cache
64 MB shared
No
Unlocked Multiplier
Yes
1
SMP
-
Memory Parameters
DDR5-5600, LPDDR5x-7500
Memory Types
DDR5-5600
256 GB
Max Memory Size
96 GB
2
Max Memory Channels
2
89.6 GB/s
Max Memory Bandwidth
-
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
1500 MHz
GPU Base Frequency
400 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
7680x4320 - 60 Hz
Max Resolution
-
4.06 TFLOPS
Graphics Performance
0.6 TFLOPS
