Overclocking my HD7950

[MLG Doge]

So, i have been starting to OC my HD7950 Sapphire Vapor-X.

I have managed to OC to these values:

 

Core clock = 850Mhz ~~~> 1100Mhz

Memory Clock = 1250Mhz to 1350Mhz

Voltage is 1150mV

 

I have tested it using Unigine Valley which it has survived.

 

 

Stock scores on the left and current one on the right.

 

Is this a good OC?

Should i push further? what should i change first?

 

Thanks in advance,

[Tedster]

I think that's pretty good. Push further if you can but if you get artifacting and you don't want to push up the voltage, or the card is getting too hot for your comfort zone, stop.

It's already getting to 88 degrees. I know that AMD says it should be fine with 95 but I'm not sure whether that applies to the older cards (while I know that they're the same chip effectively, from the 7950 to the 280).

[don_svetlio]

I think that's pretty good. Push further if you can but if you get artifacting and you don't want to push up the voltage, or the card is getting too hot for your comfort zone, stop.

It's already getting to 88 degrees. I know that AMD says it should be fine with 95 but I'm not sure whether that applies to the older cards (while I know that they're the same chip effectively, from the 7950 to the 280).

max for the 7950 is 85*C according to AMD

[SkilledRebuilds]

Most of my older 7950's did 1100Mhz without voltage @ under 70*c, a sweetspot IMO, I think you could easily get it to 1125-1175 with more voltage.

1.256v (GPU-Z) was my 3D performance state voltage @ stock on two of my cards, these 1000mhz stock cards went to 1175Mhz with just +.25mv@ 78-80*c, heat output was too much at 1.3v closing in on 85*c.

My lesser voltaged card 1.189v I believe, was a 880Mhz stock clock, but it also got to 1150Mhz as well, but I can't remember the voltage used.

 

TL:DR - I'd be surprised if you couldn't get a stable 1150Mhz or similar out of it for a 24/7 daily clock.