NVIDIA Kepler Takes Shape: GeForce GTX 680 to Offer Dynamic Clocking, 2 and 4GB GDDR5 writes, "According to the stories coming from CeBIT 2012 show in Hannover, Germany - Kepler is just weeks away. The first desktop part being launched is known under the codename GK104, and in the old product naming convention, the card would be named GTX 660 Ti or maybe GTX 670 Ti.

If rumors are true, NVIDIA sees this part as a competitor to Radeon HD 7950 and 7970 and decided to give the new Kepler the top end name - GeForce GTX 680."

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