DLSS 5 neural rendering on a Tesla V100: pure PyTorch path skips NGX entirely

Ancient-Tomorrow-871 · reddit · 2026-09-26

A developer got DLSS 5 neural rendering running in ComfyUI on a Volta V100 by bypassing NVIDIA's NGX/D3D12 runtime entirely — the network runs as plain PyTorch. Measured 0.700s/frame at 1080p with 1732MB VRAM; FP8 rounding works on SM 7.0 since it's rounding, not matmul. Open-sourced with caveats: it's a reimplementation, quality is DLSS-5-like not equal.

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