GeForce 8800 Ultra to Come Out on April 17
 

GeForce 8800 Ultra will really be Nvidia’s response to ATI R600, however the specifications of the new cards haven’t been revealed yet. Most sources, however, believe that GeForce 8800 Ultra will run at higher clock speed than GeForce 8800 GTX and may feature GDDR-4 instead of GDDR-3 memory onboard with the corresponding frequency increase. However, even today Foxconn Company is already offering an overclocked GeForce 8800 GTX with GDDR-3 memory working at 2100MHz frequency. We dare suppose that they will select fast memory like GDDR-3 for the new GeForce 8800 Ultra as well.

http://www.xbitlabs.com/news/video/d...316211223.html