AMD 4th Generation EPYC™ Processor Platform (Siena)

AMD’s “Siena” microarchitecture supports DDR5 and features world-class performance while being energy efficiency to meet the demands of today’s data centers.

Server Memory

The AMD EPYC 8004 series processor, code-named “Siena,” is an energy efficient line of server processors built on the AMD “Zen 4c” 5nm microarchitecture. The 8004 series features up to 64 cores for single-socket (1P) servers and utilizes up to six channels of DDR5 to deliver high performance bandwidth for demanding applications. The low TDP but high core density makes the 8004 series a small but powerful solution for edge or dense computing environments.

Server Memory

Targeted Uses

  • Cloud Service Providers
  • Edge Computing
  • Artificial Intelligence
  • Telco / 5G-ready Networks
  • Small-to-Medium Business

At A Glance

AMD 4th Generation EPYC™ (Siena) 8004 Series

  • Supports up to 1.152TB{{Footnote.N72861}} (Terabytes) of memory per processor
  • Supports DDR5 Registered DIMMs{{Footnote.N72862}} up to 4800MT/s, equivalent to transfer rates of 38.4GB/s per module

Memory Architecture

Memory architecture is based on six channels (6CH) arranged in up to two banks per processor. Each processor can be configured with 6 or 12 modules, depending on the motherboard layout, to achieve the maximum aggregated memory bandwidth.

  • 6 memory channels per processor
  • Up to 2 DIMMs per channel
  • Up to 12 DIMMs per processor

AMD Population Rules

(6 Channel, 12 sockets per CPU, 2 DPC)

 
AMD EPYC™ (Siena) 8xx4 SERIES – 1 DPC
AMD EPYC™ (Siena) 8xx4 SERIES – 2 DPC
 
AMD EPYC™ (Siena) 8xx4 SERIES – 1 DPC
AMD EPYC™ (Siena) 8xx4 SERIES – 2 DPC
Module Type/Ranks
Module Type/Ranks
1 DIMM per Channel
(1 DPC)
2 DIMMs per Channel
(2 DPC)
Registered DIMM (RDIMM)
Registered DIMM (RDIMM)
4800
4400 (1R + 1R)
4000 (2R + 1R/2R + 2R)
 
Module Type/Ranks
Registered DIMM (RDIMM)
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