AMD EPYC 9556
vs
AMD EPYC 9555
vs
CPU Comparison Result
Below are the results of a comparison of
AMD EPYC 9556
and
AMD EPYC 9555
processors based on key performance characteristics, as well as power consumption and much more.
Advantages
- Larger L3 Cache: 384 MB (384 MB vs 256 MB)
- Higher Max Turbo Frequency: 4.4 GHz (Up to 4.3 GHz vs 4.4 GHz)
- Newer PCI Express Version: PCIe® 5.0 x128 (PCIe® 6.0 x96 vs PCIe® 5.0 x128)
Basic
AMD
Label Name
AMD
-
Launch Date
October 2024
Server
Platform
Server
EPYC 9556
Model Name
EPYC 9555
CPU Specifications
64
Total Cores
Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).
64
128
Total Threads
128
2.75 GHz
Basic Frequency
3.2 GHz
Up to 4.3 GHz
Max Turbo Frequency
4.4 GHz
384 MB
L3 Cache
256 MB
-
CPU Socket
The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.
SP5
-
TDP
360
PCIe® 6.0 x96
PCI Express Version
PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.
PCIe® 5.0 x128
Memory Specifications
DDR5 RDIMM | MRDIMM
Memory Type
DDR5
16
Memory Channels
The number of memory channels refers to the bandwidth operation for real world application.
12
8000 MT/s / 12800 MT/s
Bus Speed
6400
Miscellaneous
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