Originally Posted by Bee_Dee_3_Dee
The HD5970's drivers are maxed out and newer ones are not going to gain anymore performance for the card.
You don't know that. Throughout the life cycle of a card, drivers are constantly improving performance. Dirt 2 saw a 25-30% increase on the 5970 just before Fermi came out.
480 will have more of a ceiling, but to say 5970 won't see any increases is illogical.