We already wrote that Nvidia’s latest and greatest D8P/G92 won’t support Tri SLI. It doesn’t have the two SLI connectors required at the top of the card, but more importantly the Geforce 8800GT won’t support DirectX 10.1. We have finally confirmed the original story.
ATI’s contender, the RV670, supports DirectX 10.1 and Shader model 4.1 and we strongly believe that ATI's marketing chaps will use this heavily to differentiate the two products, as well as to gain some advantage points.
Nvidia has already been heavily criticized for its 8800GT and the lack of Tri SLI support and this will definitely limit sales. We are sure that the Nvidia partners won’t be happy to advertise that its cards are DX 10.1 non-supporting.
Nvidia will launch the 8800GT in a week's time, on the 29th of October.
Geforce 8800 GT doesn't do DirectX 10.1