AMD EPYC 7643 vs AMD EPYC 7303
We compared two server CPUs: AMD EPYC 7643 with 48 cores 2.3GHz and AMD EPYC 7303 with 16 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD EPYC 7643 's Advantages
Larger L3 cache size (256MB vs 64MB)
AMD EPYC 7303 's Advantages
Released 2 years and 6 months late
Higher base frequency (2.4GHz vs 2.3GHz)
Lower TDP (130W vs 225W)
Score
Benchmark
Geekbench 6 Single Core
AMD EPYC 7643
+5%
1696
AMD EPYC 7303
1605
Geekbench 6 Multi Core
AMD EPYC 7643
9939
AMD EPYC 7303
+34%
13363
General Parameters
Mar 2021
Release Date
Sep 2023
AMD
Manufacturer
AMD
Server
Type
Server
Milan
Core Architecture
Milan
AMD Socket SP3
Socket
AMD Socket SP3
N/A
Integrated Graphics
N/A
EPYC (Zen 3 (Milan))
Generation
EPYC (Zen 3 (Milan))
Package
33.2 billions
Transistor Count
8.3 billions
7 nm
Manufacturing Process
7 nm
225 W
Power Consumption
130 W
TSMC
Foundry
TSMC
8x81 mm²
Die Size
2x81 mm²
12 nm
I/O Process Size
12 nm
416 mm²
I/O Die Size
416 mm²
CPU Performance
2.3 GHz
Performance Core Base Frequency
2.4 GHz
3.6 GHz
Performance Core Turbo Frequency
3.4 GHz
48
Total Core Count
16
96
Total Thread Count
32
100 MHz
Bus Frequency
100 MHz
23.0
Multiplier
24.0
64 KB per core
L1 Cache
64 KB per core
512 KB per core
L2 Cache
512 KB per core
256 MB shared
L3 Cache
64 MB shared
No
Unlocked Multiplier
No
6
Cores per CCD
8
2
SMP
2
Memory Parameters
DDR4-3200
Memory Types
DDR4-3200
8
Max Memory Channels
8
Yes
ECC Memory Support
Yes
Miscellaneous
4
PCIe Version
4
128
PCIe Lanes
128
