overclocking 7950

[Michisha]

So I have the sapphire 7950. And I am want to oc it .

Can some one give me advice on safe oc for the graphic

Default spec:

 

GPU clock: 925mhz

Memory clock: 1250mhz

voltage locked

 

I am think go up to 1100/1450 is it ok ?

[Kinda Bottlenecked]

Should be alright. My 280x/7970 went up to 1180mhz. But I had to back it down to 1125mhz because of skyrim  :rolleyes:

[xAcid9]

So I have the sapphire 7950. And I am want to oc it .

voltage locked

 

Voltage locked@1.25v? If yes you probably can OC it to 1100mhz with ease.

RAM use Hynix or Elpida? If Hynix  maybe around 1500mhz.

[Michisha]

Should be alright. My 280x/7970 went up to 1180mhz. But I had to back it down to 1125mhz because of skyrim  :rolleyes:

I cant go higher then 1100 its the max

 

Voltage locked@1.25v? If yes you probably can OC it to 1100mhz with ease.

RAM use Hynix or Elpida? If Hynix  maybe around 1500mhz.

i heard that under 1500 can burn my memory and how i can know witch ram my GPU use ?

[BrinkGG]

Should be alright. My 280x/7970 went up to 1180mhz. But I had to back it down to 1125mhz because of skyrim  :rolleyes:

"Because skyrim" 

(YEP)

 

So I have the sapphire 7950. And I am want to oc it .

Can some one give me advice on safe oc for the graphic

 

 

I am think go up to 1100/1450 is it ok ?

What's the temp at currently under load?

[SkilledRebuilds]

I cant go higher then 1100 its the max

 

i heard that under 1500 can burn my memory and how i can know witch ram my GPU use ?

1100Mhz Max stable, or Max you can move the slider and you can't go further..? <-- You can open this limit up in MSI AB settings. (Extend Clock limits)

AMD cards have plenty of bandwidth and hardly even need a mem clock increase at all, plus the coreclock provides more performance per mhz added in comparison anyway.

 

All of my HD7950's did 1100Mhz without voltage (could be lucky, but I think its a good average to aim for), and It's a great performance sweetspot for that particular card in regards to performance VS heat output.

[Kinda Bottlenecked]

"Because skyrim" 

(YEP)

 

What's the temp at currently under load?

 

Modded Skyrim is more intensive than valley. Nothing really weird about that. 

[Michisha]

"Because skyrim" 

(YEP)

 

What's the temp at currently under load?

73-65

 

1100Mhz Max stable, or Max you can move the slider and you can't go further..? <-- You can open this limit up in MSI AB settings. (Extend Clock limits)

AMD cards have plenty of bandwidth and hardly even need a mem clock increase at all, plus the coreclock provides more performance per mhz added in comparison anyway.

 

All of my HD7950's did 1100Mhz without voltage (could be lucky, but I think its a good average to aim for), and It's a great performance sweetspot for that particular card in regards to performance VS heat output.

max i can move the slider but now i unlock this with you method 

my 7950 do 1100mhz without voltage i run my gpu on 1100/1450 but is it posable to go higher ?

and another question is i unable the hints in msi afterburner but thy still not show

[Kinda Bottlenecked]

I cant go higher then 1100 its the max

 

i heard that under 1500 can burn my memory and how i can know witch ram my GPU use ?

 

Max as in? Not stable afterward?

[xAcid9]

i heard that under 1500 can burn my memory and how i can know witch ram my GPU use ?

Depend, if your cooler have heatsinks on the VRAM then you probably good for 1500mhz or even more.

Download GPU-Z and check Memory Type.

[Michisha]

Max as in? Not stable afterward?

I run now another test in calley benchmark on 1150/1400 and its run stable

 

Depend, if your cooler have heatsinks on the VRAM then you probably good for 1500mhz or even more.

Download GPU-Z and check Memory Type.

GDDR5(Elpida)

[xAcid9]

I run now another test in calley benchmark on 1150/1400 and its run stable

 

GDDR5(Elpida)

Elpida memory generally doesn't overclock that well but 1450 should be achievable i guess.

You still haven't answer my question, which 280x is that. Judging from voltage locked it's probably a Gigabyte or an XFX?

[Michisha]

Elpida memory generally doesn't overclock that well but 1450 should be achievable i guess.

You still haven't answer my question, which 280x is that. Judging from voltage locked it's probably a Gigabyte or an XFX?

its 7950 not a 280x and its sepphire

[xAcid9]

its 7950 not a 280x and its sepphire

Sorry, mixed up with another thread.  :wacko:

 

Sapphire 7950 is not voltage locked unless you're using the Boost BIOS, at least that what happened with my old 7950 Vapor-X. 

Switch to "normal' BIOS and the voltage should unlock. 

[Michisha]

Sorry, mixed up with another thread.  :wacko:

 

Sapphire 7950 is not voltage locked unless you're using the Boost BIOS, at least that what happened with my old 7950 Vapor-X. 

yea i am using boost bios but I need this voltage control ?