im puzzled why peeps think the 690 will be the same as the 590?
the gk104 is a lot cooler temp + voltage chip than the fermi ever was so even 2 on a card would mean it would be nearlly half the temp of a 590 plus room to oc just like all the other 680 cards...plus throw in a good heatsink and fan setup and you good to go.
plus temps wouldnt get out of hand if you leave a gap between 2 cards...i think peeps here just think its gonna be another 590 when it reality its a completely different beast(chip)
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apparently only 4GB (2x2GB) not 4GB(8GB) per card, maybe a cost thing.
and as to why purchase?..well from my perspective high fps from a single card on 30" or triple screens.
also your future proofing yourself more due to having one card and in a years time getting another to combat newer games.
its already been said and shown the new kepler series scale better than previous gen cards so if ever you get to 2 cards for Quad-sli its gonna be a better experience than 4xx and 5xx series
2x680 £850>£1200
1x690 £600>£800.....everyones a winner..
just waiting on reviews now
Happy Days