VideoCardz.com is reporting that they not only know the upcoming GTX 960 core will be the GM206, but they reportedly have a photo of the unreleased chip.
Why are reported leaks always slightly out of focus? (Credit: VideoCardz.com)
The chip pictured appears to be a GM206-300, which the site claims will be the exact variant in the GTX 960 when it is released. The post speculates that based on the die size we can expect between 8 – 10 SMM's, or 1080 – 1280 CUDA cores. They further claim that the GTX 960 will have a 128-bit memory bus and reference cards will have a 2GB frame buffer (though naturally we can expect models with 4GB of memory after launch).
The post goes on to show what appears to be a search result for an ASUS GTX 960 on their site, but if this existed it has since been taken down. More than likely a GTX 960 is in fact close at hand, and the reported specs (and now multiple claimed listings for the card) are not hard to fathom.
We will keep you updated on this alleged new GPU if more details emerge.