AMD Ryzen 5 PRO 8640U vs AMD Ryzen 9 3900X
CPU · Specs Compare
General Parameters
Release Date
Apr 2024
Jul 2019
Manufacturer
AMD
AMD
Type
Laptop
Desktop
Core Architecture
Hawk Point
Zen 2
Integrated Graphics
Radeon 760M
N/A
Generation
Ryzen 5 (Zen 4 (Hawk Point))
—
Instruction Set
—
x86-64
Package
Transistor Count
25 billions
3.8 billions
Manufacturing Process
4 nm
7 nm
Socket
AMD Socket FP7
AM4
Power Consumption
28 W
105 W
Foundry
TSMC
—
Die Size
178 mm²
—
Package
FP7, FP7r2
—
Peak Operating Temperature
—
95 °C
CPU Performance
Performance Core Base Frequency
3.5 GHz
3.8 GHz
Performance Core Turbo Frequency
4.9 GHz
4.6 GHz
Total Core Count
6
12
Total Thread Count
12
24
Bus Frequency
100 MHz
100 MHz
Multiplier
35.0
38x
L1 Cache
64 KB per core
64 K per core
L2 Cache
1 MB per core
512 K per core
L3 Cache
16 MB shared
64 MB shared
Unlocked Multiplier
No
Yes
SMP
1
—
Performance Cores
—
12
Performance Core Threads
—
24
Memory Parameters
Memory Types
DDR5-5600
DDR4-3200
Max Memory Channels
2
2
ECC Memory Support
Yes
Yes
Max Memory Size
—
128 GB
Max Memory Bandwidth
—
47.68 GB/s
Miscellaneous
PCIe Version
4
4.0
PCIe Lanes
20
16
Benchmark
Cinebench R23
1,552
1,306
Cinebench R23
10,675
18,454
Geekbench 6
2,519
1,842
Geekbench 6
10,308
11,715
Geekbench 5
—
1,319
Geekbench 5
—
11,991
Cinebench 2024
—
78
Cinebench 2024
—
1,068
Passmark CPU
—
2,683
Passmark CPU
—
32,531
▲ Specs Compare
Data sourced from official specifications and benchmark tests.