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Comparison
AMD Ryzen 9 7940HS vs AMD Ryzen 5 8640HS
AMD Ryzen 9 7940HS vs AMD Ryzen 5 8640HS
VS
AMD Ryzen 9 7940HS
AMD Ryzen 5 8640HS
We compared two laptop CPUs: AMD Ryzen 9 7940HS with 8 cores 4.0GHz and AMD Ryzen 5 8640HS with 6 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD Ryzen 9 7940HS 's Advantages
Better graphics card performance
Higher base frequency (4.0GHz vs 3.5GHz)
AMD Ryzen 5 8640HS 's Advantages
Released 11 months late
Lower TDP (28W vs 35W)
Score
Benchmark
Cinebench R23 Single Core
AMD Ryzen 9 7940HS
+5%
1832
AMD Ryzen 5 8640HS
1732
Cinebench R23 Multi Core
AMD Ryzen 9 7940HS
+34%
17585
AMD Ryzen 5 8640HS
13110
Geekbench 6 Single Core
AMD Ryzen 9 7940HS
+11%
2534
AMD Ryzen 5 8640HS
2267
Geekbench 6 Multi Core
AMD Ryzen 9 7940HS
+23%
12852
AMD Ryzen 5 8640HS
10369
AMD Ryzen 9 7940HS
VS
AMD Ryzen 5 8640HS
General Parameters
Jan 2023
Release Date
Dec 2023
Amd
Manufacturer
Amd
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Zen 4 (Phoenix)
Core Architecture
Hawk Point
FP8
Socket
FP8
Radeon 780M
Integrated Graphics
Radeon 760M
-
Generation
Ryzen 5 (Zen 4 (Hawk Point))
Package
25 billions
Transistor Count
25 billions
4 nm
Manufacturing Process
4 nm
FP8
Socket
FP8
35-54 W
Power Consumption
28 W
100°C
Peak Operating Temperature
100°C
-
Foundry
TSMC
-
Die Size
178 mm²
-
Package
FP8, FP7, FP7r2
CPU Performance
8
Performance Cores
6
16
Performance Core Threads
12
4.0 GHz
Performance Core Base Frequency
3.5 GHz
5.2 GHz
Performance Core Turbo Frequency
4.9 GHz
8
Total Core Count
6
16
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
40x
Multiplier
35x
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
16 MB shared
No
Unlocked Multiplier
No
-
SMP
1
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
800 MHz
GPU Base Frequency
1500 MHz
2800 MHz
GPU Max Dynamic Frequency
2600 MHz
768
Shader Units
384
48
Texture Units
24
32
Raster Operation Units
16
12
Execution Units
6
15 W
Power Consumption
15 W
7680x4320 - 60 Hz
Max Resolution
7680x4320 - 60 Hz
8.12 TFLOPS
Graphics Performance
4.06 TFLOPS
Miscellaneous
AMD Ryzen 9 7940HS
Official Website
AMD Ryzen 5 8640HS
4.0
PCIe Version
4.0
20
PCIe Lanes
20
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