
Up until just very recently there wasn't even any real indication of NVIDIA working on a dual-GPU based GTX 400 series card, but this is obviously the most logical path to go down for NVIDIA to attempt a firm hold of the crown once again.
With Computex just around the corner, Lifting up a rock in Taiwan has shed a dim light on such a card being in the works; the GTX 490. Details are blurred but the document that's been seen was indicative of :-
a) It being dual-GPU.
b) Likely using GTX 470 GPUs.
c) Has a power draw somewhere around the 375w mark.
If this information is accurate, with the reference form GTX 470 on its own drawing 215w then one would think a fair amount of down-clocking is in place on the GTX 490, but NVIDIA could well have some extra tricks in the bag to get around that without it requiring a nuclear power plant to operate and perform strongly.
No doubt some more whispers, hopefully with substance will be heard during Computex.