AMD EPYC 7643P vs AMD EPYC 9745
We compared two server CPUs: AMD EPYC 7643P with 48 cores 2.3GHz and AMD EPYC 9745 with 128 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD EPYC 7643P 's Advantages
Lower TDP (225W vs 400W)
AMD EPYC 9745 's Advantages
Released 1 years and 1 months late
Higher specification of memory (6000 vs 3200)
Newer PCIe version (5 vs 4)
Higher base frequency (2.4GHz vs 2.3GHz)
More modern manufacturing process (3nm vs 7nm)
Score
Benchmark
Geekbench 6 Single Core
AMD EPYC 7643P
1420
AMD EPYC 9745
+65%
2357
Geekbench 6 Multi Core
AMD EPYC 7643P
1431
AMD EPYC 9745
+1547%
23581
General Parameters
Sep 2023
Release Date
Oct 2024
AMD
Manufacturer
AMD
Server
Type
Server
Milan
Core Architecture
Turin
AMD Socket SP3
Socket
AMD Socket SP5
N/A
Integrated Graphics
N/A
EPYC (Zen 3 (Milan))
Generation
EPYC(Zen 5c (Turin))
Package
33.2 billions
Transistor Count
7 nm
Manufacturing Process
3 nm
225 W
Power Consumption
400 W
TSMC
Foundry
TSMC
8x81 mm²
Die Size
mm²
12 nm
I/O Process Size
6 nm
416 mm²
I/O Die Size
mm²
CPU Performance
-
Performance Cores
128
-
Performance Core Threads
256
2.3 GHz
Performance Core Base Frequency
2.4 GHz
3.6 GHz
Performance Core Turbo Frequency
3.7 GHz
48
Total Core Count
128
96
Total Thread Count
256
100 MHz
Bus Frequency
100 MHz
23.0
Multiplier
24.0
64 KB per core
L1 Cache
80 KB per core
512 KB per core
L2 Cache
1 MB per core
256 MB shared
L3 Cache
256 MB shared
No
Unlocked Multiplier
No
8
Cores per CCD
-
1
SMP
2
Memory Parameters
DDR4-3200
Memory Types
DDR5-6000
-
Max Memory Size
6 TB
8
Max Memory Channels
12
-
Max Memory Bandwidth
576 GB/s
Yes
ECC Memory Support
Yes
