# cuDNN 9.4.0 for CUDA 11.x — Software interface version compatibility

For cuDNN 9.4.0 for CUDA 11.x, product is cuDNN; software version is 9.4.0; dependency version is CUDA 11.x; minimum nvidia driver (linux) is >= 450.80.02; minimum nvidia driver (windows) is >=452.39, recorded from its source on 2026-08-27; source re-checked 2026-10-27.

- **Product:** cuDNN _(our reading, not quoted from the source)_
- **Version pairing:** cuDNN 9.4.0 for CUDA 11.x _(our reading, not quoted from the source)_
- **Software version:** 9.4.0 _(verified: appears in the quote below)_
- **Dependency version:** CUDA 11.x _(verified: appears in the quote below)_
- **Minimum NVIDIA driver (Linux):** >= 450.80.02 _(verified: appears in the quote below)_
- **Minimum NVIDIA driver (Windows):** >=452.39 _(verified: appears in the quote below)_

## What the source says

> cuDNN 9.4.0 for CUDA 11.x | 11.8 | Yes | >= 450.80.02 | >=452.39

## Source

- https://docs.nvidia.com/deeplearning/cudnn/backend/v9.4.0/reference/support-matrix.html

Last verified: 2026-10-27. Review by: 2026-12-26.
Part of [Software interface version compatibility](https://referencesource.org/software-interface-version-compatibility/).