Home Comparison AMD EPYC 9645 vs AMD EPYC 9555

AMD EPYC 9645 vs AMD EPYC 9555

AMD EPYC 9645
VS
AMD EPYC 9555
AMD EPYC 9645
AMD EPYC 9555
We compared two server CPUs: AMD EPYC 9645 with 96 cores 2.3GHz and AMD EPYC 9555 with 64 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 9645 's Advantages
More modern manufacturing process (3nm vs 4nm)
Lower TDP (320W vs 360W)
AMD EPYC 9555 's Advantages
Higher base frequency (3.2GHz vs 2.3GHz)

Score

AMD EPYC 9645
VS
AMD EPYC 9555

General Parameters

Oct 2024
Release Date
Oct 2024
AMD
Manufacturer
AMD
Server
Type
Server
Turin
Core Architecture
Turin
AMD Socket SP5
Socket
AMD Socket SP5
N/A
Integrated Graphics
N/A
EPYC(Zen 5c (Turin))
Generation
EPYC(Zen 5 (Turin))

Package

Transistor Count
66.52 billions
3 nm
Manufacturing Process
4 nm
320 W
Power Consumption
360 W
TSMC
Foundry
TSMC
mm²
Die Size
8x70.6 mm²
6 nm
I/O Process Size
6 nm
mm²
I/O Die Size
mm²

CPU Performance

96
Performance Cores
64
192
Performance Core Threads
128
2.3 GHz
Performance Core Base Frequency
3.2 GHz
3.7 GHz
Performance Core Turbo Frequency
4.4 GHz
96
Total Core Count
64
192
Total Thread Count
128
100 MHz
Bus Frequency
100 MHz
23.0
Multiplier
32.0
80 KB per core
L1 Cache
80 KB per core
1 MB per core
L2 Cache
1 MB per core
256 MB shared
L3 Cache
256 MB shared
No
Unlocked Multiplier
No
2
SMP
2

Memory Parameters

DDR5-6000
Memory Types
DDR5-6000
6 TB
Max Memory Size
6 TB
12
Max Memory Channels
12
576 GB/s
Max Memory Bandwidth
576 GB/s
Yes
ECC Memory Support
Yes

Miscellaneous

AMD EPYC 9645
Official Website
AMD EPYC 9555
5
PCIe Version
5
128
PCIe Lanes
128

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