While we patiently wait for the final specs which is to be confirmed next week, we got hold of something which is supposed to be a cooler of the NVIDIA GeForce GTX 590 graphics card. What amazes me is the thickness of the cooler which is measured at 21.5mm so it implies this card is highly likely to be based on a single slot design.
Earlier this month Sparkle showcased a single-slot GeForce GTX 570 at CeBIT.