Its not like having two driveways at all, two driveways are useful as you can park more vehicles as a pose to only having one driveway, however 2 cards is more of a hindrance because they take up more space, will often use more power and produce more heat, vs a single card. Also it could be harder to sell two cards when you come to upgrade and crossfire doesn't always scale well.
Two driveways take up more space as well.
You can fit to cars in a single driveway, usually.
Maybe I overlooked something in the specs?
It was supposed to be a bit rate comparison, but like I stated, 128x 2 is 256.
Im sorry I didnt specify better.
I wasnt considering re-sale value, wattage draw, or heat, merely numerical performace specs.
But omgitzfatal is correct, thgua
there will be factors like the ones he mentioned that might also play a role in what to decide in too.
the resale of a 5870 will always be higher than the 5770.