Earlier quoted context omitted.
The thing to understand about Nvidia is that they use the same model as Apple: Produce really nice software, and use it to drive hardware sales. On the driver side, a lot of the features and performance advantages of Nvidia cards are rumored to be largely implemented in software. (Think of things like having a really good optimizing compiler for shaders.) Open sourcing that code would allow other brands to copy a lot…
> That said, my understanding is that you are committed to Linux, you still get a more robust OpenGL implementation (ATI used to be buggy as sin) and better shader performance with Nvidia hardware/software. That's probably true, if your use case requires the absolute best GPU performance. For me, though, the Intel and AMD open source drivers have gotten good enough that the marginal improvements possible with proprie…
First, situations where performance doesn't matter, and it needs to be cheap and Just Work. Intel beats everyone else here. (I'm really eager to see what Intel does with their upcoming discrete video card.)
Second, situations where performance is a Big Deal, and I'm willing to both pay money and jump through hoops to get it. Nvidia was winning here the last time I looked closely.
ATI products exist somewhere in the middle, and I can't remember the last time that I needed anything like that.