VR2R-0702_r1

VR2R-0702

① SA Source

• Source: 開啟完整 SA 文章
• Section: VR NVL72 TCO: BoM and Power Budget Analysis
• Line hint: 609

Context Before

By contrast, AMD is much more exposed to DRAM price increases as it has about double the amount of DRAM, with about 55 TB per rack of LPDDR5 and 55 TB per rack of DDR5.

Evidence

For AMD’s Helios rack scale system, AMD sells the GPU/board and does procure the LPDDR5 memory, but it does not procure DDR5 DRAM for rack compute trays

Context After

; rack assemblers/ODMs source and integrate DDR5 memory. This leaves buyers of AMD’s racks more exposed because AMD is only able to potentially “hedge” the LPDDR5 portion via long-term contracts leaving the DDR5 portion completely exposed. Having double the DRAM content also nearly doubles the overall exposure.

② Atomic Claim

在 AMD Helios rack-scale system 中，AMD 銷售 GPU / board，也會採購 LPDDR5，但不會替 rack compute tray 採購 DDR5 DRAM。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "02_companies/AMD",
        "label": "AMD"
      },
      "role": "vendor"
    },
    {
      "node": {
        "id": "04_knowledge_base/GPU",
        "label": "GPU"
      },
      "role": "processor"
    },
    {
      "node": {
        "id": "04_knowledge_base/LPDDR5",
        "label": "LPDDR5"
      },
      "role": "procured_memory"
    },
    {
      "node": {
        "id": "04_knowledge_base/DDR5",
        "label": "DDR5"
      },
      "role": "not_procured_memory"
    },
    {
      "node": {
        "id": "04_knowledge_base/DRAM",
        "label": "DRAM"
      },
      "role": "memory_category"
    },
    {
      "node": {
        "id": "04_knowledge_base/Compute Tray",
        "label": "compute tray"
      },
      "role": "rack_component"
    }
  ],
  "qualifiers": {
    "condition_text": "Helios is plain text in source claim",
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "relation_type": "AMD_HELIOS_MEMORY_PROCUREMENT_SCOPE"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
vendor	AMD	AMD
processor	GPU	GPU
procured_memory	LPDDR5	LPDDR5
not_procured_memory	DDR5	DDR5
memory_category	DRAM	DRAM
rack_component	compute tray	04_knowledge_base/Compute Tray

⑤ Human Review

請在 Properties 逐項確認：

• 原文 → Atomic Claim 是否忠實
• Atomic Claim → Semantic Frame 是否忠實
• Canonical Entity mapping 是否正確
• Epistemic mode 是否保留原文語氣
• 最後選擇 review_action

Review state

Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。