I had 740mhz core and 1100mhz memory. That was running fine for about a week, until my card started artifacting at stock, and underclocked settings. RMAed it, and I guess it died before it got there lol. I received a new 4850 from Asus after a MONTH of waiting
Core may be able to go more, but CCC has the 700 limit and running Rivatuner in the background slows my system, so the extra 10-20 mhz I get on the core won't make up for the bog down.
Any higher and it starts artifacting really mildly. The temps are still really low so I guess the card needs more voltage to actually really go any higher.
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