VR2R-0101
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Rubin - Line hint:
131
Context Before
This means the sparser the workload, the closer the performance will be to the 50 PFLOPS marketed peak performance. NVIDIA thus brands the 50 PFLOPS figure as FP4 Inference while the 35 PFLOPS FP4 Training number is for dense workloads. As accuracy is preserved, this allows the marketing team to claim 5x FLOPs for Rubin over GB200, comparing 50 PFLOPS dynamically compressed FP4 to 10 PFLOPS dense FP4. Whether actual GEMM performance reaches 50 PFLOPS depends on how many zeros are in the tensor. The more zeros, the closer it can reach. The less zeros in the tensor, the lower the speedup. Overall, we expect to see much greater traction for Rubin’s adaptive sparsity compression as opposed to structured sparsity thanks to the automatic implementation.
With that said, many ML Systems engineer are still skeptical that this new form of sparsity will work well, and it is very possible that Nvidia’s 50 PFLOPS is purely marketing like prior generations
Evidence
Rubin’s chip level TDP increases up to 2,300W vs 1000-1400W for Blackwell. Supply chain rumors have indicated that there are 2 different “SKUs” with different power and performance profiles: a Max-P variant at 2,300W and a Max-Q variant at 1,800W. However, these are not distinct hardware SKUs but the 2 default power profiles that Nvidia is offering users based on their workload needs. Max-Q is what Nvidia believes offers the best performance per Watt. Max-P offers the greatest absolute performance though this would come with an efficiency penalty. Running the Max-P setting results in a 20% increase in rack power draw but the performance gain fall well short of this 20% power consumption increase.
Context After
These power profiles are software managed. Users can also choose whatever max power draw they prefer (as long as it is no more than 2,300W per GPU) and this has been the case for previous GPU generations as well. Several hyperscalers and labs have chosen to run their GPUs at lower power to optimize for performance per Watt as well as taking into account power availability constraints.
② Atomic Claim
Supply chain rumors 指出有兩種不同 power/performance profile：Max-P 為 2,300W，Max-Q 為 1,800W。
- Epistemic Mode:
RUMORED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "supply chain rumor",
"numeric_mentions": [
"2",
"2,300W",
"1,800W"
],
"temporal_mentions": []
},
"reason": "MAX_P_MAX_Q_PROFILES_NOT_CANONICALIZED",
"statement": "傳聞有兩種 power/performance profiles：Max-P 2,300W、Max-Q 1,800W。"
}④ Canonical Entity Mapping
- 此
CLAIM_ONLYrevision 沒有 canonical Entity mapping。
⑤ V2 Draft（需要修正時直接編輯）
Inline repair
只編輯以下三個 Draft 區塊。完成後將
review_action設為REQUEST_REPAIR，再手動執行 Repair Preview。
執行腳本前，Draft 不會寫入 Claim Store 或 Graph。
V2 Atomic Claim Draft
Supply chain rumors 指出有兩種不同 power/performance profile：Max-P 為 2,300W，Max-Q 為 1,800W。
V2 Semantic Frame Draft
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "supply chain rumor",
"numeric_mentions": [
"2",
"2,300W",
"1,800W"
],
"temporal_mentions": []
},
"reason": "MAX_P_MAX_Q_PROFILES_NOT_CANONICALIZED",
"statement": "傳聞有兩種 power/performance profiles：Max-P 2,300W、Max-Q 1,800W。"
}V2 Revision Metadata Draft
{
"epistemic_mode": "RUMORED",
"mapping_status": "PARTIAL"
}⑥ 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。