AMD EPYC 7663P vs AMD EPYC 8434PN
We compared two server CPUs: AMD EPYC 7663P with 56 cores 2GHz and AMD EPYC 8434PN with 48 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD EPYC 7663P 's Advantages
Larger L3 cache size (256MB vs 128MB)
AMD EPYC 8434PN 's Advantages
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
More modern manufacturing process (5nm vs 7nm)
Lower TDP (155W vs 240W)
Score
General Parameters
Sep 2023
Release Date
Sep 2023
AMD
Manufacturer
AMD
Server
Type
Server
Milan
Core Architecture
Siena
AMD Socket SP3
Socket
AMD Socket SP6
N/A
Integrated Graphics
N/A
EPYC (Zen 3 (Milan))
Generation
EPYC (Zen 4c (Siena))
Package
33.2 billions
Transistor Count
35.5 billions
7 nm
Manufacturing Process
5 nm
240 W
Power Consumption
155 W
-
Peak Operating Temperature
85 °C
TSMC
Foundry
TSMC
8x81 mm²
Die Size
4x73 mm²
12 nm
I/O Process Size
6 nm
416 mm²
I/O Die Size
397 mm²
CPU Performance
2 GHz
Performance Core Base Frequency
2 GHz
3.5 GHz
Performance Core Turbo Frequency
3 GHz
56
Total Core Count
48
112
Total Thread Count
96
100 MHz
Bus Frequency
100 MHz
20.0
Multiplier
20.0
64 KB per core
L1 Cache
64 K per core
512 KB per core
L2 Cache
1 MB per core
256 MB shared
L3 Cache
128 MB shared
No
Unlocked Multiplier
No
8
Cores per CCD
-
1
SMP
1
Memory Parameters
DDR4-3200
Memory Types
DDR5-4800
8
Max Memory Channels
6
Yes
ECC Memory Support
Yes
Miscellaneous
4
PCIe Version
5
128
PCIe Lanes
96
