AMD Ryzen 5 7645HX vs AMD Ryzen 9 7940HS
CPU · Specs Compare
General Parameters
Release Date
Jan 2023
Apr 2023
Manufacturer
AMD
AMD
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 4 (Dragon Range)
Zen 4 (Phoenix)
Integrated Graphics
Radeon 610M
Radeon 780M
Package
Manufacturing Process
5 nm
4 nm
Socket
FL1
FP8
Power Consumption
45-75 W
35-54 W
Peak Operating Temperature
100°C
100°C
Transistor Count
—
25 billions
CPU Performance
Performance Cores
6
8
Performance Core Threads
12
16
Performance Core Base Frequency
4.0 GHz
4.0 GHz
Performance Core Turbo Frequency
5 GHz
5.2 GHz
Total Core Count
6
8
Total Thread Count
12
16
Bus Frequency
100 MHz
100 MHz
Multiplier
40x
40x
L1 Cache
64 K per core
64 K per core
L2 Cache
1 MB per core
8 MB
L3 Cache
32 MB shared
16 MB
Unlocked Multiplier
Yes
No
Memory Parameters
Memory Types
DDR5-5200
DDR5-5600, LPDDR5x-7500
Max Memory Size
64 GB
256 GB
Max Memory Channels
2
2
Max Memory Bandwidth
83.2 GB/s
89.6 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
1500 MHz
800 MHz
GPU Max Dynamic Frequency
2200 MHz
2800 MHz
Shader Units
128
768
Texture Units
8
48
Raster Operation Units
4
32
Execution Units
2
12
Power Consumption
15 W
15
Max Resolution
—
7680x4320 - 60 Hz
Miscellaneous
PCIe Version
5.0
4.0
PCIe Lanes
28
20
AI Accelerator
NPU
—
AMD Ryzen™ AI
Theoretical performance
—
10 TOPS
Benchmark
Cinebench R23
1,800
1,804
Cinebench R23
13,954
15,820
Geekbench 6
2,720
2,534
Geekbench 5
1,895
—
Geekbench 6
11,906
12,852
Geekbench 5
11,141
—
Cinebench 2024
—
70
Cinebench 2024
—
721
Passmark CPU
—
3,910
Passmark CPU
—
30,545
▲ Specs Compare
Data sourced from official specifications and benchmark tests.