i thought i've read the title as "rv790 is not faster than rv770"
We learned some bits and pieces on ATI's upcoming RV790 chip and we can now happily confirm that his is yet another 55nm chip from ATI.
The company didn't want to postpone the introduction of the new card in performance segment and therefore did it in 55nm, while RV740 remains the first 40nm. RV740 just launched as a mobile chip, and we've seen it up and running, while the desktop part should arrive in the next month or two.
The new chip is a new architecture, but with some basic concepts taken from the RV770, that is why the chip will be significantly faster than anything based on the RV770. It is not just a speed bump and a better batch of RV770 based Radeon HD 4870 and 4850 chips, it is a newer and better chip.
It looks like this new chip will beat the GTX 260, and it could even get close to GTX285, but at a much more affordable price.
Originally Posted by CAHOP240
Sounds pretty interesting
Originally Posted by KamuiRSX
Well hell....ATI said this when they first announced the damn chip. The rumor mill spread said it was supposed to be an RV770 revamp. I just can't wait to see this sucker spank the GTX 285. Too bad it's so late in the game to create another Dual GPU....or is it
Originally Posted by Cheetos316
Hmm... a new architecture? If that's the case, why not just give it the HD5K? .
Originally Posted by nathris
So its like R600->RV670?
RV790 will likely be a new core, with some subtle architecture changes that will improve performance per clock while allowing higher clocks.
I'm fine with that. I doubt it will eclipse the GTX 280, but it should come awfully close, while costing less than 2/3 as much.