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GPU memory writes: A deep dive into RTX 4090 data flow

By PulseAugur Editorial · [1 sources] ·

This technical deep dive explains the process of a GPU writing data back to memory, specifically focusing on the STG.E instruction on an RTX 4090. The article traces the data's journey from the warp through the load/store unit, coalescer, L1 cache, and finally to the L2 slice. It details how data is packaged, masked, and routed through these components, highlighting the write-through nature of the L1 cache and the set-associative structure of the L2 cache. AI

IMPACT Provides foundational understanding of GPU memory operations critical for AI model training and inference.

RANK_REASON Detailed technical explanation of hardware operation. [lever_c_demoted from research: ic=1 ai=0.7]

Read on Hacker News — AI stories ≥50 points →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

GPU memory writes: A deep dive into RTX 4090 data flow

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Detailed technical explanation of hardware operation. [lever_c_demoted from research: ic=1 ai=0.7]
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COVERAGE [1]

  1. Hacker News — AI stories ≥50 points TIER_1 English(EN) · ibobev ·

    What happens when a GPU writes memory

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