GeForce 9900 GTX & GTS Slated For July Launch

[Sr7]

Neckbreaker and AMD is usually refered to as economics. And since RV670 is basicly a R600 with half the bus you should eb able to put 2 and 2 together.

GDDR5 will be cheap enough for the cards needing it. And its cheaper than going 512bit. AMD went 512->256bit. nVidia went 384->256bit. Notice the trend?

That doesn't mean its not necessary... we've seen cases where 256-bit hurts performance vs. 384-bit and 512-bit. It's not much of an obvious need-based trend when you're talking about each company needing to keep up with their competition in terms of costs for their products. If they choose to go the costlier route, they automatically lose out in a price cut war. No one wants that disadvantage, so they happened to match each others 256-bit specs last round because it was the logical thing to do (offer a value card).

This time it's two different costly approaches to increase back to 512-bit bandwidth levels. So much for any trend..