Yes, bystander has it right. nVidia released a driver recently that forced the nVidia card to not work if an ATI card was present. Sort of like shooting themselves in their own foot.
There's a small but existent market that only bought an nVidia card so they could do GPU Physics. If nVid stopped that, those people would just go with ATI.
There's a small but existent market that only bought an nVidia card so they could do GPU Physics. If nVid stopped that, those people would just go with ATI.
Wouldn't those same people then use an ATI card AND an Nvidia card? Ya, some might just use an older card, but others would purchase both.
It might also make physX a bigger market and further push it's adoption in the market.