Can you guys help me?

[khangnt2005]

Can I have the best Overclocking settings for Radeon Hd7950 3gb on Msi afterburner please.
All the stuffs,even fan speed

 

[breadpug]

Every card is different. You'll have to bump your clock speeds and run stress tests using a program like kombustor at every step. Even if it's the same chipset, one cards overclock might not work on another

 

[13thmonkey]

Every card is different. You'll have to bump your clock speeds and run stress tests using a program like kombustor at every step. Even if it's the same chipset, one cards overclock might not work on another

never mind ambient temp, cooling, stability of the PSU etc.

There is no short cut, learn to OC, do it in steps.

 

[zebarjadi.raouf]

Can I have the best Overclocking

You have to test it yourself.
Get MSI Afterburner + Unigine Valley (or heaven). Start Unigine on ultra.

Max your power limit (450+ PSU), increase your core clock 25+ at a time while testing with UNIGINE benchmark till artifacts (weird lines and colors) happen or your driver crashes. Then fine tune it by increasing 10 at a time from your previous clock. Example Core clock: +25 > ... > +100 > crash > +75 > +85 > ....
Do the same for Memory, then save your profile. Don't check apply overclocking at startup.

fan speed

Should work on stock settings. I generally put it on 100% after 80c from settings fan.

Keep your temps below 85c, if you go over it or stay near it., consider installing a fan on your case near the GPU.
Also, that a relatively old GPU. Consider changing the thermal paste too.