It'll be very interesting to see quite how well these mid range graphics cards perform.
If the specifications are indeed confirmed, the graphics card has the potential to cause another 8800GT phenomenon. If the graphics card uses high frequency GDDR5 like the HD 5770/5870, it could potentially compensate for it's narrower memory interface and with well over 50% more stream processors than the GTX 285, this graphics card could perform in HD 5850 territory. Fingers crossed we'll also be seeing sensible temperatures and power consumption from it too.