Infra Learning Club

Feb 12, 2025 · Fundamentals

Why Does Nvidia Report Less GPU Memory Than Specified?

The article investigates why Nvidia L40S and RTX A6000 GPUs show less memory via nvidia‑smi than their advertised 48 GB, revealing that enabled ECC memory reserves a few gigabytes, and demonstrates the effect by toggling ECC on a Tesla‑T4 card.