A rumour from Chinese forums Chiphell suggests that NVIDIA has pulled in the release of GeForce GTX 680 from the original plan of March/April to as early as late February.The rumour claims GTX 680 will offer similar performance to AMD's Radeon HD 7970. Clock speed is 780 MHz - no higher than GTX 580 - while it sports 2GB memory. While this suggests a 512-bit or 256-bit memory bus, NVIDIA has in the past mated 1GB to 192-bit with GTX 550 Ti, so it is possible GTX 680 has a 384-bit memory interface. Little else is revealed about the mysterious GTX 680.The source of the rumour is notable forum member Napoleon from Chiphell, who has a history of leaking GPU related information. That said, this is nothing but a rumour - amidst other conflicting rumours - and must be considered as such. Source: Chiphell
Read more: Rumour: NVIDIA GeForce GTX 680 to release in February by VR-Zone.com