NVIDIA has confirmed that the iconic PhysX engine cannot run on the GeForce RTX 50 series (Blackwell) due to applications running on 32-bit CUDA not being supported on Blackwell anymore (affecting other applications besides PhysX alone).
Older GPUs from the GeForce RTX 40 series and below will still support running 32-bit CUDA applications, but newer GPUs starting from Blackwell (CUDA 12.0 and above) will no longer be compatible.
PhysX was originally developed in 2001 by NovodeX AG from Switzerland, later acquired by Ageia in 2004, and then further acquired by NVIDIA in 2008. Currently, PhysX is open-sourced on GitHub under the NVIDIA Omniverse brand. However, due to declining popularity, it is unlikely that NVIDIA will invest in further updates for PhysX.
Since PhysX has been around for a while, it has been widely used in many game engines. This change will inevitably impact a significant number of older games that will no longer be playable on GeForce RTX 50 series in the future.
Source: NVIDIA, NVIDIA Forum, Tom’s Hardware
**TLDR:** NVIDIA confirms PhysX will no longer be supported on GeForce RTX 50 series due to changes in CUDA support, impacting older games using the PhysX engine.
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