GB2-0039
① SA Source
- Source: 開啟完整 SA 文章
- Section:
NVLink Scale Up Interconnect - Line hint:
331
Context Before
Source: SemiAnalysis
Evidence
Context After
Even though the NVLink backplane content is more than twice as expensive for NVL36x2 vs NVL72, most customers will opt for the NVL36x2 design due to power and cooling constraints which we will discuss below. To be clear while it is very pricey, both NVL36x2 and NVL72 have lower copper costs than the investor community thinks.
② Atomic Claim
NVL36x2 因跨 rack 連接需要約兩倍 NVSwitch5 ASIC，NVLink copper cabling 成本也超過 NVL72 的兩倍。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"comparison_expression": "NVL36x2 NVLink copper cabling cost is more than double NVL72",
"entities": [
{
"id": "04_knowledge_base/NVL36",
"label": "NVL36"
},
{
"id": "04_knowledge_base/GB200 NVL72",
"label": "GB200 NVL72"
},
{
"id": "04_knowledge_base/Copper",
"label": "copper"
}
],
"frame_type": "COMPARISON",
"metric": "nvlink_copper_cabling_cost",
"operator": "GREATER_THAN_2X",
"qualifiers": {
"condition_text": "NVL36x2",
"numeric_mentions": [
"2x"
],
"temporal_mentions": []
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| comparison_entity_0 | NVL36 | NVL36 |
| comparison_entity_1 | GB200 NVL72 | 04_knowledge_base/GB200 NVL72 |
| comparison_entity_2 | copper | Copper |
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。