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At Present Which is the best choice for a Ubuntu graphics card, AMD or nVidia?
I have an ATI HD 5870 card. Drivers in 12.04 are so slow, they are pointless. In fact I have tried all sorts of configuration and have fallen back to Ubuntu 2D which is usable but not that quick. Chrome canvas performance in Windows 7 trounces that of Ubuntu which is quite shocking as I paid quite a lot of money for the card a couple of years ago and I thought the drivers would be there by now.
So, I'm thinking about upgrading to an Nvidia GTX680 card but before I shell out £500 I wanted to know whether it works well in Ubuntu 12.04.
I have been reading that ATI are being kinder to the Linux desktop than Nvidia at the moment. How can this be?
EDIT: I specifically would like to hear from people who moved from ATI to Nvidia for similar reasons and about their experience. Thank you.