AMD Ryzen Embedded 8640U vs EPYC 4345P
We compared two server CPUs: AMD Ryzen Embedded 8640U with 6 cores 3.5GHz and EPYC 4345P 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 Embedded 8640U 's Advantages
Lower TDP (28W vs 65W)
EPYC 4345P 's Advantages
Released 1 years and 1 months late
Newer PCIe version (5 vs 4)
Higher base frequency (3.8GHz vs 3.5GHz)
Larger L3 cache size (32MB vs 16MB)
Score
General Parameters
Apr 2024
Release Date
May 2025
AMD
Manufacturer
AMD
Server
Type
Server
Hawk Point
Core Architecture
Grado
AMD Socket FP8
Socket
AMD Socket AM5
Radeon 760M
Integrated Graphics
Radeon Graphics
Ryzen Embedded (Zen 4 (Hawk Point))
Generation
EPYC (Zen 5 (Grado))
Package
25 billions
Transistor Count
8.315 billions
4 nm
Manufacturing Process
4 nm
28 W
Power Consumption
65 W
-
Peak Operating Temperature
95°C
TSMC
Foundry
TSMC
178 mm²
Die Size
70.6 mm²
-
I/O Process Size
6 nm
-
I/O Die Size
122 mm²
CPU Performance
3.5 GHz
Performance Core Base Frequency
3.8 GHz
4.9 GHz
Performance Core Turbo Frequency
5.5 GHz
6
Total Core Count
8
12
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
35.0
Multiplier
38.0
64 KB per core
L1 Cache
80 KB per core
1 MB per core
L2 Cache
1 MB per core
16 MB shared
L3 Cache
32 MB shared
No
Unlocked Multiplier
No
1
SMP
1
Memory Parameters
DDR5-5600
Memory Types
DDR5-5600
2
Max Memory Channels
2
Yes
ECC Memory Support
Yes
Miscellaneous
4
PCIe Version
5
20
PCIe Lanes
24
