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970 Reference and Afterburner

Soldato
Joined
31 Dec 2006
Posts
7,224
What kind of overclocks have people got with the reference 970 and Afterburner, in terms of what are the boosts you've specifically set within Afterburner? I find it a bit confusing that it doesn't show what my actual figures are, rather you just boost a fixed amount. Is GPU-Z best for monitoring what the actual overclock is?
 
cant get my head around it myself, if I oc to 1316 the boost sets to 1443 but benching afterburner and gpuz shows my core clocks go up to 1530
 
Yeah I'm not sure what I'm looking at when I do it. Doesn't seem logical to me. I'd have hoped for a far more simple approach and clarity as to what I'm actually doing.
 
There is the core clock and the boost clock that the manufacturer says is a minimum the card will hit. You often find that your card actually boosts more than the stated which is a bonus.

Use Afterburner to increase your overclock. Use GPU-Z to check on the first screen to confirm your new default and boost clock. Click on the ? next to the PCIE information to start the inbuilt test render then click on the second tab to see what the actual boost clock is set to.

Its quite simple.

Then if you want to adjust your overclock in afterburner nudge it up a bit, click apply and whilst the test render is still running check the clock figures.

Easy peesy.
 
My reference cards are 1050mhz stock at the moment I have +150 core and +100 memory in Afterburner which gives me a boost stable of 1451mhz core and 1820mhz memory (7280mhz in effect as its 4 times the set memory clock stated due to it being ddr5 mem, confused yet ? You get used to it. Oops didnt mean to do two posts.)
 
My reference cards are 1050mhz stock at the moment I have +150 core and +100 memory in Afterburner which gives me a boost stable of 1451mhz core and 1820mhz memory (7280mhz in effect as its 4 times the set memory clock stated due to it being ddr5 mem
Thanks, that helps. What about the power limit, any advantage in increasing that?

How do you know if it's stable? Will a simple benchmark in Valley indicate that if it crashes/gives you artifacts?
 
Thanks, that helps. What about the power limit, any advantage in increasing that?

Only if the overclock is unstable. You just increase first the power limit to full see if that cures it then try the core voltage very small increments.

How do you know if it's stable? Will a simple benchmark in Valley indicate that if it crashes/gives you artifacts?

Yes. I prefer Heaven to 3D Mark as its a quicker way of determining whether its stable or not.

I tend to run Heaven, 3D Mark 11 and 3D Mark. Really you should just play a game.
 
Boosting is volts, heat and power limit dependable.

For example those who say they can boost to X amount without touching voltages are actually limiting themselves as if they increased the voltage to max, the card would boost even further.

Likewise the card can only pull X amount of power before the it starts to limit the maximum boost.

This is why people haven't noticed a huge improvement when flashing them as although they adjust the power limit of the card, they aren't actually increasing the power to the card.
 
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