GTX 295 connected to two cards (the so-called sandwich), and what is linked to that, the system requires an efficient cooling. Block water between them seems to be a very good solution. This solution is able to pay much more heat than the reference cooling air. Probably see further chilled water ZOTAC GTX 285

A new type of cooling can significantly affect the capacity ovcerclockingu of these cards. You can expect the GTX 285 will exceed the magic 702MHz for GPU! Keep fingers crossed. Air-cooled liquid GTX 295 is likely to be the fastest card on the market.