Joseph_Joestar wrote on 2025-12-06, 08:45:

That said, GPU load exceeding 50% while playing a game from 2009 on an RTX 5090 is kinda wild.

Well, if you run with uncap framerate, the engine is still gonna use all the resources at its disposal. 300 fps are a lot and probably are bottlenecked by the CPU. If you used an even faster CPU, you could approach 100% load at double that framerate.

DosFreak wrote on 2025-12-05, 01:23:

https://www.nvidia.com/en-us/geforce/news/bat … e-ready-driver/

Support For Select, Classic, 32-Bit GPU-Accelerated PhysX Games […]
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Support For Select, Classic, 32-Bit GPU-Accelerated PhysX Games

GeForce RTX 50 Series GPUs launched at the beginning of the year, alongside the phasing out of 32-bit support for CUDA. This meant that PhysX effects in a number of older, yet beloved games were not GPU-accelerated on GeForce RTX 50 Series GPUs.

We heard the feedback from the community, and with the launch of our new driver today, we are adding custom support for GeForce gamers’ most played PhysX-accelerated games, enabling full performance on GeForce RTX 50 Series GPUs, in line with our existing PhysX support on prior-generation GPUs.

By installing our new GeForce Game Ready Driver, the full GPU-accelerated PhysX experience can now be enjoyed in:

Alice: Madness Returns
Assassin’s Creed IV: Black Flag
Batman: Arkham City
Batman: Arkham Origins
Borderlands 2
Mafia II
Metro 2033
Metro: Last Light
Mirror’s Edge

Support for Batman: Arkham Asylum is planned to be added in the first part of 2026.

the question is whether that is gona work with 5000 series only or with all following series too.

robertmo3 wrote on 2025-12-11, 19:51:

the question is whether that is gona work with 5000 series only or with all following series too.

I would assume so, as long as 64-bit PhysX continues to be supported.

Only if Nvidia will drop CUDA alltogether.

feda wrote on 2025-12-11, 20:11:

I would assume so, as long as 64-bit PhysX continues to be supported.

Considering is based on CUDA, which is a framework used by countless professionals in multiple fields, and the reason many of them (myself included) forked the price for a nVidia GPU... I think that 64-bit PhysX will remanin supported until nVidia goes belly up.

The Serpent Rider wrote on 2025-12-11, 20:21:

Only if Nvidia will drop CUDA alltogether.

You ninjed me.

ok, so i guess we are waiting for a 32-bit d3d drop now? 😉

robertmo3 wrote on 2025-12-11, 20:35:

ok, so i guess we are waiting for a 32-bit d3d drop now? 😉

Now, I'm not sure if 32-bit d3d requires dedicated hardware on GPUs, but 32-bit CUDA did. That's why it got dropped: Because nVidia deprecated that part on the silicon itself. And also why, despite it being reintroduced, it relies on some sort of translation layer, meaning PhysX games will still run faster on older GeForce cards.
A 4090 is still much faster than a 5090 in 32-bit PhysX games, but now even the second one can achieve well over playable framerates, instead of relying on extremely slow software PhysX.

robertmo3 wrote on 2025-12-11, 20:35:

ok, so i guess we are waiting for a 32-bit d3d drop now? 😉

That's not for Nvidia to decide.

i think it was nvidia who dropped d3d1-9c in 400 series

You mean Fermi? That sounds silly, because Fermi had Windows XP drivers.

Anyway, nobody will suddenly drop 32-bit Direct3D application support, unless Microsoft will do it.

It's probably mostly gone technically.
All that's left is a thunking layer a hundred bytes long to feed 32 into 64, and return 64 as 32.