NVIDIA plans no reference cards for GTX 275
 

According to NVIDIA, it will not release any reference cards of GTX275, but the AIC can get the license to design the non-reference GTX275 and manufacture it.

GTX275 will has a higher clock than GTX260, but its specific frequencies are not yet clear.

http://en.expreview.com/2009/03/19/g...-graphics.html