AMD Ryzen 9 7945HX3D vs AMD Ryzen 7 7840U
CPU · Specs Compare
General Parameters
Release Date
Aug 2023
May 2023
Manufacturer
Amd
Amd
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 4 (Dragon Range)
Zen 4 (Phoenix)
Processor Number
7945HX3D
—
Integrated Graphics
Radeon 610M
Radeon 780M
Generation
Ryzen 9 (Zen 4 (Dragon Range))
—
Package
Transistor Count
17.8 billions
25 billions
Manufacturing Process
5 nm
4 nm
Socket
FL1
FP8
Power Consumption
55-75 W
15-30 W
Peak Operating Temperature
89 °C
100 °C
Foundry
TSMC
—
Die Size
2x71 mm²
—
I/O Process Size
6 nm
—
I/O Die Size
122 mm²
—
Package
µFC-BGAFL1
—
CPU Performance
Performance Cores
16
8
Performance Core Threads
32
16
Performance Core Base Frequency
2.3 GHz
3.3 GHz
Performance Core Turbo Frequency
5.4 GHz
5.1 GHz
Total Core Count
16
8
Total Thread Count
32
16
Bus Frequency
100 MHz
100 MHz
Multiplier
23
33
L1 Cache
64 K per core
64 K per core
L2 Cache
1 MB per core
8 MB
L3 Cache
128 MB shared
16 MB
Unlocked Multiplier
Yes
No
SMP
1
—
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
400 MHz
800 MHz
GPU Max Dynamic Frequency
2200 MHz
2700 MHz
Shader Units
128
768
Texture Units
8
48
Raster Operation Units
4
32
Execution Units
2
12
Power Consumption
15
15 W
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
1,957
1,745
Cinebench R23
33,539
12,789
Geekbench 6
2,799
2,480
Geekbench 6
16,929
11,518
Cinebench 2024
115
—
Cinebench 2024
1,771
—
Passmark CPU
4,070
—
Passmark CPU
57,113
—
Blender
—
227
▲ Specs Compare
Data sourced from official specifications and benchmark tests.