Gibbo (Overclockers UK purchasing manager) has said that the only Zotac GTX 670 to use a GTX 680 pcb is their 4GB flavour, so this looks the post here could be it!! But he has no ETA for it at the moment.Galaxy / KFA2 GTX 670 pictures....
Is anyone on here Chinese or can read Chinese?
Far Cry 2
Deus Ex Human Revolution
GTA 4 settings with ENB mod
Crysis (2???) time demo benchmark
The cards that have a custom non reference cooler, like the Gigabyte, Asus, probably MSI cards. they will use the longer GTX 680 pcb. I'm assuming that these will also be the pre overclocked cards as well.