The AMD EPYC™ 9554P is a 64-core / 128-thread server processor based on Zen 4, optimized for single-socket (1P) platforms. On an SP5 socket, it combines 12 channels of DDR5 ECC memory and up to 128 PCIe® 5.0 lanes, offering massive throughput, reduced latency, and excellent energy efficiency for cloud, virtualization, database, and HPC workloads.
P = single-socket: this model does not support dual-socket configurations (inter-socket links are disabled).
Key Points
-
64 Cores / 128 Threads (AMD Zen 4 architecture)
-
Cache: 256 MB L3 + 64 MB L2 (≈ 320 MB total)
-
Platform: SP5 (EPYC 9004 “Genoa”)
-
Memory: 12 channels DDR5 ECC (RDIMM/LRDIMM), very high capacity per socket
-
I/O: up to 128 PCIe 5.0 lanes (CXL ready depending on motherboard)
-
Security: SEV-SNP, SME, Shadow Stack, hardware-level memory/VM encryption
-
Instruction Set: AVX-512, VNNI, cryptographic accelerations
-
TDP: 360W class (depending on platform/BIOS profile)
-
Cooling: not supplied (managed by server chassis)
-
iGPU: none (display via BMC/ASPEED depending on motherboard)
Ideal for
-
Private/public cloud, virtualization, and containers with very high density in single-socket setups
-
Databases (SQL/NoSQL), analytics, and in-memory processing
-
HPC, parallel computing, and microservices
-
Edge/telecom, NVMe-oF storage, and PCIe 5.0 network front ends
Technical Specifications
-
Architecture: AMD Zen 4
-
Cores / Threads: 64 / 128
-
Typical Frequencies: base ~3.1 GHz, boost up to ~3.75 GHz (depending on platform/cooling)
-
Cache: 256 MB L3 + 64 MB L2
-
Socket: SP5 (LGA 6096)
-
Memory: DDR5 ECC in 12 channels, RDIMM/LRDIMM (very high capacities)
-
Connectivity: up to 128x PCIe 5.0 (CXL depending on motherboard)
-
Security: SEV-SNP, SME, Secure Boot, Memory Guard
-
Management: compatible with BMC/IPMI/Redfish via server motherboards
-
Cooler: not included (thermal solution according to chassis)
