2025-06-13_amd-advancing-ai-mi350x-and-mi400-ualoe72-mi500-ual256::AMD25-0007
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Executive Summary - Line hint:
61
Context Before
There is a new work in progress initiative to raise AMD engineering pay to be more competitive with market rate and to more closely align compensation with the success of AMD. The timing for which AMD will announce this to their AI engineers remains to be seen
Evidence
The MI400 Series racks are not actually using real UALink for scale-up networking. AMD has instead renamed its Infinity Fabric Over Ethernet to “UALink over Ethernet” and uses this for its scale-up network
Context After
The MI400 Series scale-up network will use Broadcom Ethernet Tomahawk 6 switches because Marvell and Astera Labs’ UALink switches will not be ready by late 2026
② Atomic Claim
SemiAnalysis 指出 MI400 scale-up 實際採 UALoE（Infinity Fabric over Ethernet 的重新命名），而非 native UALink。
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"frame_type": "NARY_RELATION",
"participants": [
{
"node": {
"id": "04_knowledge_base/MI400",
"label": "MI400"
},
"role": "system"
},
{
"node": {
"id": "04_knowledge_base/UALoE",
"label": "UALoE"
},
"role": "protocol"
},
{
"node": {
"id": "04_knowledge_base/Ethernet",
"label": "Ethernet"
},
"role": "transport"
},
{
"node": {
"id": "04_knowledge_base/Infinity Fabric",
"label": "Infinity Fabric"
},
"role": "legacy"
}
],
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"relation_type": "MI400_SCALE_UP_PROTOCOL"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| system | MI400 | MI400 |
| protocol | UALoE | UALoE |
| transport | Ethernet | Ethernet |
| legacy | Infinity Fabric | 04_knowledge_base/Infinity Fabric |
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。