So it seems certain that the 390x won't be anything less than $700 upon release whilst the 290x is now $300 each so two cost $600. Its very unlikely that the 390x would be over 50% better than the 290x by itself (even given the most optimistic rumours) and since adding a second 290x produces a 85% performance increase on average than it would seem that 2x290x would be better value for money and be more powerful (though it takes alot of power. What do you guys think? Get 290x CF now and upgrade in few years time as price goes down for 390x or other cards?