Originally Posted by Drek
Sure, but in about a year we'll probably be looking at something in the Titan/7990 core count as a $300 card, so then you'll want the GDDR5, and system memory won't be an adequate replacement due to lower bandwidth.
Regardless of the core count though, providing more GDDR5 for less cost will come as a result. Some will use that to add more ram, some will use the cost, heat, and energy savings to push the silicon further. No matter what it will subsidize the ramp up on a new fab process for a key graphics card component.
Guessing its 3 years before you see Titan performance in a single $250-$300 card.