Quote Originally Posted by STaRGaZeR View Post
I think his point is that if the two options can provide the same bandwidth (256+GDDR5 vs 512+GDDR3) it's cheaper and way less complex to design and use the first.
GDDR3 is far cheaper and much more widely available than GDDR5. Also, Nvidia is concerned about the cost of their chips not the cost of the cards. If they use GDDR5 they don't get any benefit from using more expensive memory. Expensive chip + cheap memory for the same net performance and price to the consumer is an overall win for the chip maker. It's the AIB's that get squeezed.