Today nVidia releases the first (and probably only) 7-Series GeForce for the AGP interface. It performs noticeably better than a 6800 Ultra and costs only about $300. There are several retail cards already available, several of which have been overclocked quite a bit from the reference design. Click below to see the GeForce 7800 GS reviews and specifications.
GeForce 7800 GS AGP