Overview
- A pre-release DLSS 5 DLL found inside NBA 2K27 files was leaked in late August and quickly extracted by modders who patched it to run in multiple games outside NVIDIA’s official release.
- Community tests show catastrophic slowdowns on Ampere (RTX 30‑series) hardware, with one widely shared clip showing Deep Rock Galactic fall from about 130–138 FPS to roughly 4 FPS and frame times jump from ~7–8 ms to ~260 ms.
- The leaked runtime is unusually large (around 150 MB) and appears to include heavy model weights that increase compute and memory demand, making neural rendering far more costly on older GPUs.
- Hardware analysis attributes the regressions to DLSS 5’s FP8‑focused compute and model design that, according to reports, can be read natively only by the forthcoming RTX 50 (Blackwell) architecture.
- NVIDIA has not confirmed which older GPUs will receive official DLSS 5 support, leaving players and developers facing variable, often unplayable results on Ampere cards and raising the possibility of buyer and integration shifts ahead of a planned fall rollout.