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Comparison
AMD Ryzen 5 8645HS vs AMD Ryzen 7 7840HS
AMD Ryzen 5 8645HS vs AMD Ryzen 7 7840HS
VS
AMD Ryzen 5 8645HS
AMD Ryzen 7 7840HS
We compared two laptop CPUs: AMD Ryzen 5 8645HS with 6 cores 4.3GHz and AMD Ryzen 7 7840HS with 8 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD Ryzen 5 8645HS 's Advantages
Released 11 months late
Higher base frequency (4.3GHz vs 3.8GHz)
AMD Ryzen 7 7840HS 's Advantages
Better graphics card performance
Score
Benchmark
Cinebench R23 Single Core
AMD Ryzen 5 8645HS
1732
AMD Ryzen 7 7840HS
+4%
1803
Cinebench R23 Multi Core
AMD Ryzen 5 8645HS
13085
AMD Ryzen 7 7840HS
+31%
17192
Geekbench 6 Single Core
AMD Ryzen 5 8645HS
2229
AMD Ryzen 7 7840HS
+16%
2605
Geekbench 6 Multi Core
AMD Ryzen 5 8645HS
9891
AMD Ryzen 7 7840HS
+23%
12167
Cinebench 2024 Single Core
AMD Ryzen 5 8645HS
+1%
103
AMD Ryzen 7 7840HS
101
Cinebench 2024 Multi Core
AMD Ryzen 5 8645HS
702
AMD Ryzen 7 7840HS
+23%
866
AMD Ryzen 5 8645HS
VS
AMD Ryzen 7 7840HS
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 (Phoenix)
FP8
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
FP8
Socket
FP8
35-54 W
Power Consumption
35-54 W
100°C
Peak Operating Temperature
100°C
TSMC
Foundry
-
178 mm²
Die Size
-
FP8, FP7, FP7r2
Package
-
CPU Performance
6
Performance Cores
8
12
Performance Core Threads
16
4.3 GHz
Performance Core Base Frequency
3.8 GHz
5 GHz
Performance Core Turbo Frequency
5.1 GHz
6
Total Core Count
8
12
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
43x
Multiplier
38x
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
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
Yes
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
8.12 TFLOPS
Miscellaneous
AMD Ryzen 5 8645HS
Official Website
AMD Ryzen 7 7840HS
4.0
PCIe Version
4.0
20
PCIe Lanes
20
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