Here's another preview of ATI's R520 and others, this time from Digit-Life:
It's no secret that there appeared a lot of preliminary data (for
example, on www.anandtech.com and www.vr-zone.com) on future ATI
products based on the new R520 chip and its crippled low-end
modifications (RV5XX). Let's try to sum up the available information,
pick out the most likely (logically) scenarios and parameters, and
analyze the prospects. On we go. Read on over here.