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AMD · CPU

AMD EPYC 9825

AMD EPYC 9825 — Specifications and benchmarks. .

These specifications are supported by the linked sources. Core counts, clocks and memory capacities do not predict workload performance. Check benchmark versions, environments and sample counts.

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Power

ParameterValue and conditions
TDP
390 W
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Default TDP",
  "raw_value": "390W",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "Default TDP",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
390 W
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Default TDP",
  "raw_value": "390W",
  "qualifiers": {
    "source_field": "Default TDP",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}

Compute

ParameterValue and conditions
Base clock
2,200 MHz
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Base Clock",
  "raw_value": "2.2 GHz",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "Base Clock",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
2,200 MHz
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Base Clock",
  "raw_value": "2.2 GHz",
  "qualifiers": {
    "source_field": "Base Clock",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}
Max boost clock
3,700 MHz
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Max. Boost Clock",
  "raw_value": "Up to 3.7 GHz",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "Max. Boost Clock",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
3,700 MHz
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Max. Boost Clock",
  "raw_value": "Up to 3.7 GHz",
  "qualifiers": {
    "source_field": "Max. Boost Clock",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}
CPU cores
144
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "# of CPU Cores",
  "raw_value": "144",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "# of CPU Cores",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
144
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "# of CPU Cores",
  "raw_value": "144",
  "qualifiers": {
    "source_field": "# of CPU Cores",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}
threads
288
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "# of Threads",
  "raw_value": "288",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "# of Threads",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
288
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "# of Threads",
  "raw_value": "288",
  "qualifiers": {
    "source_field": "# of Threads",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}

Memory

ParameterValue and conditions
L3 cache
384 MB
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "L3 Cache",
  "raw_value": "384 MB",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "L3 Cache",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
384 MB
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "L3 Cache",
  "raw_value": "384 MB",
  "qualifiers": {
    "source_field": "L3 Cache",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}
Max capacity by memory type
1 DIMM/channel: 6 TB per processor at 6000 MT/s; 2 DIMMs/channel: 12 TB at 4000 MT/s (AMD 58471 rev. 1.0). Other AMD documents disagree; confirm validated DIMMs and BIOS with the system vendor.
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Conditional maximum supported memory",
  "raw_value": "1 DIMM/channel: 6 TB per processor at 6000 MT/s; 2 DIMMs/channel: 12 TB at 4000 MT/s (AMD 58471 rev. 1.0). Other AMD documents disagree; confirm validated DIMMs and BIOS with the system vendor.",
  "qualifiers": {
    "capacity_conditions": [
      {
        "capacity_tb": 6,
        "dpc": 1,
        "memory_speed_mts": 6000
      },
      {
        "capacity_tb": 12,
        "dpc": 2,
        "memory_speed_mts": 4000
      }
    ],
    "capacity_scope": "per-processor",
    "conflicting_source_urls": [
      "https://docs.amd.com/api/khub/documents/xG3lMw~fCmrqvz4A0sDWug/content",
      "https://www.amd.com/content/dam/amd/en/documents/epyc-business-docs/datasheets/amd-epyc-9005-series-processor-datasheet.pdf",
      "https://www.amd.com/en/partner/articles/epyc-9005-series-processors.html"
    ],
    "evidence_checked_at": "2026-10-10T11:39:43.416175+00:00",
    "family": "EPYC 9005 Series",
    "memory_type": "DDR5",
    "not_board_slot_count": true,
    "not_installed_ram": true,
    "source_conflict": "9005-memory-capacity-conflict",
    "source_field": "Conditional maximum supported memory",
    "source_revision": "58471rev1.0 October2024",
    "source_row": 3,
    "source_section": "2.2Memory printed page3",
    "source_sha256": "78ab66a6a7b1d5123eebe3e2907ce1ec37e57bbd211834019f5918283b81cd48"
  },
  "document_id": "reaudit-epyc-9005-conditional-memory-78ab66a6a7b1d512"
}
Memory channels
12
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Memory Channels",
  "raw_value": "12",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "Memory Channels",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
12
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Memory Channels",
  "raw_value": "12",
  "qualifiers": {
    "source_field": "Memory Channels",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}
Published DIMM populations
12, 24
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "Published DIMM populations",
  "raw_value": "12, 24",
  "qualifiers": {
    "document_section": "9005 architecture and DIMM population",
    "scope": "per processor; board layout illustrative",
    "source_field": "Published DIMM populations",
    "source_row": 3
  },
  "document_id": "topology-epyc-9005-d7ac928e263a085a"
}
Supported RAM module types
RDIMM
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "System Memory Subtype",
  "raw_value": "RDIMM",
  "qualifiers": {
    "retrieval_method": "reviewed structured extraction from readable primary-source text",
    "scope": "9004/9005 SP5 family; RDIMM-3DS is also documented",
    "source_field": "System Memory Subtype",
    "source_row": 27,
    "source_url": "https://www.asrockrack.com/minisite/AMD-EPYC-9005-Server/"
  },
  "document_id": "topology-epyc-rdimm-948df062512a03d7"
}
Memory type
DDR5
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "System Memory Type",
  "raw_value": "DDR5",
  "qualifiers": {
    "release_evidence": "dated-manufacturer-listing",
    "source_field": "System Memory Type",
    "source_product_url": "https://www.amd.com/en/products/processors/server/epyc/9005-series/amd-epyc-9825.html",
    "source_row": 34
  },
  "document_id": "amd-server-table-ba5dc2e1f3f72b71"
}
DDR5
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "System Memory Type",
  "raw_value": "DDR5",
  "qualifiers": {
    "source_field": "System Memory Type",
    "source_row": 1
  },
  "document_id": "detail-77d67f348a67cdc1-e9b50c06468fb033"
}

Connectivity and features

ParameterValue and conditions
Socket
SP5
Source and conditions

View source ↗

{
  "state": "known",
  "raw_label": "CPU Socket",
  "raw_value": "SP5",
  "qualifiers": {
    "document_section": "9005 architecture and DIMM population",
    "scope": "per processor; board layout illustrative",
    "source_field": "CPU Socket",
    "source_row": 3
  },
  "document_id": "topology-epyc-9005-d7ac928e263a085a"
}

Public benchmarks

Compare results with matching versions, scenes, settings and statistics. A run count of 0 identifies an aggregate or reported value, not a newly measured run.

No comparable public scores are available. This does not mean a score of zero or poor performance.

Sources

Source terms and retrieval dates are listed below. Published values and conditions may change.