While we're on the topic of Borderlands 2

You can use PhysX if you buy, say, a GTS450, a 9800GT and use them for PhysX ONLY. Even if you're on Radeon.

It is not 'supported' but it is available, as a matter of fact. I've played Batman Arkham City with enabled PhysX on my HD5770. It hits performance pretty hard on AMD cards but it's still possible to have it on.

Sorry, I meant that its not a feature I particularly care for, neither would I pay a price premium for it.

Indeed. If that's the future, I'm going to buy a card with PhysX the next time I upgrade.

I'm curious as to whether both cards were on the same setting.

That said, its not a huge loss, and its a feature that rarely gets utilized in a fully recognizable way. No need to feel too bad about not having a few water and particle effects, eh?

;)

and i edited ninjaed when you said ninjaed >.<.
Oh and OP use google will ya?

Yes that's why you have a second card (nvidia) to handle the PhysX. From what I recall, this used to just work by default but nvidia modified their drivers to prevent people from doing this (and forcing people to buy nvidia and get rid of ATI/AMD). A quick Google turned this up, but I haven't tried it. Personally I don't see the big deal about PhysX, but I guess some people like it.

Relevance of the CPU PhysX solution

Let’s first examine the fact that Nvidia currently only allows GPU-accelerated PhysX on its own graphics cards, thus forcing everyone else to calculate the PhysX instructions implemented in games using the CPU. The result for non-Nvidia gamers is usually an unplayable game when you turn PhysX on without a GeForce card installed.

Tom's Hardware

It's available on non-nVidia cards, but it isn't GPU accelerated.

Its usefulness is relative.

On the other hand, PhysX is a physics engine, with the special thing with nVidia being that nVidia cards do the physics calculations rather than the CPU.

AFAIK PhysX is still in game either way, but GPU acceleration is another story with AMD cards, of course.

To be fair, I guess only people who really follow hardware news would know.

Still, I'm surprised by how many people didn't know of it. Not necessarily here, but judging on that YouTube ad posted below, wow.