Intel’s excellent Open Image Denoise (OIDN) has been released in version 2.0. OIDN offers a superb free AI model that’s specially trained to clear 3D renders of noise and grain.
This 2.0 release mainly adds GPU acceleration and support for newer GPUs, along with expanded API features. No speed boost in 2.0, so far as I can tell, other than that which might be added by using your NVIDIA CUDA or AMD graphics card to drive the denoising.
I guess it’ll be added to Poser and Vue relatively soon, as they both have OIDN plugged in by default. There’s still no Photoshop plugin for it though, so far as I know.