NIEK2-0085
① SA Source
- Source: 開啟完整 SA 文章
- Section:
SRAM and Memory Hierarchy - Line hint:
73
Context Before
LPU 3’s near reticle size die layout is very similar to LPU 1. a significant amount of area taken is up by the 500MB of on-chip SRAM, with a very small amount of area dedicated to MatMul cores that offer 1.2 PFLOPs of FP8 compute – a fraction of compute compared to Nvidia GPUs. This compares to LPU 1 with 230MB of SRAM and 750 TFLOPs of INT8, with the performance increase mostly driven by node migration from GF16 to SF4. As a single monolithic die, advanced packaging isn’t required.
One of the benefits of relying on SF4 is that it isn’t constrained like TSMC’s N3, which is putting a cap on accelerator production and is a key reason why the industry remains compute constrained. ↗ This is in addition to not having HBM which is also constrained ↗. This allows Nvidia to ramp production of the LPU without sacrificing or eating into their valuable TSMC allocation or HBM allocations, representing true incremental revenue and capacity that noone else can access.
Evidence
and use CoWoS-R
Context After
Source: Nvidia, SemiAnalysis Accelerator Model ↗
② Atomic Claim
LP40 將採用 CoWoS-R。
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"attribute": "ADOPTION_STATUS",
"context_nodes": [],
"entity": {
"id": "04_knowledge_base/CoWoS",
"label": "CoWoS-R"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [],
"value_text": "LP40 將採用 CoWoS-R。"
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| entity | CoWoS-R | CoWoS |
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。