Overclocking 7850

What are your temperatures? Try loading a 3d game like BF3 or Furmark. See if you see any artifacts on the screen

You never know until you try! However the 7850 is known to be a good overclocker so go for it. Make sure it is stable by using a tool such as MSI Kombustor or Furmark to stress test it and make sure you visually check for artifacts.

Andrew

Edit: Beat me to It!

i would normally go for 10~15% increase from the stock clock / whatever the preset is, i guess tweaking around with it is the best way to do things, and you wont kill your card by doing so, - unless you go do something really really wrong and stupid =)

I get about 50c in BF3 and thats on Metro 64 player. Using amd catalyst overdrive.

thats well within the limits just increase the clocks slowly until you get the performance you're looking for. The maximum confortable temperatures for me would be around 70Celcius while playing intensive 3d games. On 28nm that'll probably hard to hit anyway  

if i read it before correctly, the first limit is 1050 mhz

Yes.... I only put it up to 1000.