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Radeon HD 7770 overclocking

Last response: in Graphics & Displays
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December 22, 2012 10:52:49 PM

Hey all, I just bought myself a new Sapphire Radeon HD 7770 and so far i'm very pleased. I just wanted to see if I could boost the performance a little but every time i try to overclock just a little, the drivers crash during gameplay or stress testing. The stock clocks are at 1150 core and 1250 memory. Any suggestions on what to do? Would upping the power control settings allow me to overclock it? Thanks in advance.

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a b U Graphics card
December 23, 2012 12:19:11 AM

Upping power control settings can sometimes help
but honestly overclocking GPU's is a game of change, some will overclock while others will not.
This is especially more prevalent in the cheaper end cards where they have less power phases and usually cheaper memory which can limit the ability to overclock
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a b U Graphics card
December 23, 2012 12:29:00 AM

Can you name the Brand of your GPU?
I think your GPU is Factory Overclocked.
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a c 84 U Graphics card
a b K Overclocking
December 23, 2012 12:39:57 AM

Stock clocks for the 7770 are 1000 MHz core and 1125 MHz (4500 MT/s) memory, so it's already overclocked out of the box. You'd still expect at least a little more room to scale though. It's unusual for a card to be factory overclocked right to the limit.

Does it cope with stress tests at regular clocks? The problem might be something else than the GPU being unable to cope with the overclock.

What software are you using to overclock the GPU?
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December 23, 2012 1:50:10 AM

It's a Sapphire GHz OC edition. First I used MSI Afterburner to try to overclock, and when that didn't work I just used to catalyst control center, but both still crashed the drivers. When I run furmark at stock settings it's perfectly fine. I got to 1200 core and 1300 memory and it seems fine. But is that as far as I can go?
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a b U Graphics card
December 23, 2012 1:54:24 AM

Maybe then the card will not OC anymore.
The card is already OCed to its peak.
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a c 82 U Graphics card
a b K Overclocking
December 23, 2012 1:55:40 AM

some card will hit a wall even with voltage changes, might be ur limit :) 

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December 23, 2012 2:19:45 AM

Should i give it a try? What should i put the power at if i were to try?
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a c 82 U Graphics card
a b K Overclocking
December 23, 2012 2:27:57 AM

what u mean power, u mean core clock speed and etc, id ask on the overclocking section of tomshardware they might be more able to help u :) 

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December 23, 2012 2:30:47 AM

I mean the voltage i think. In the AMD overdrive there's a slider that says power control settings, currently at default 0%.
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December 23, 2012 2:57:17 AM

Scratch that about it being fine at 1200 core and 1275 memory, just crashed on me playing some BF3.
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a c 82 U Graphics card
a b K Overclocking
December 23, 2012 3:04:14 AM

k dont mess around with the voltage that can really damage ur card, only do it at ur own risk.

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a b U Graphics card
December 23, 2012 3:11:02 AM

iceclock said:
k dont mess around with the voltage that can really damage ur card, only do it at ur own risk.


+1
You'll not get a Huge Boost even if you OC the card.
You can't Deny that the Card is weak and will not give a Reasonable performance even if you OC more 50Mhz.

Thats the Limit of that Card.
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December 23, 2012 4:24:25 AM

Thanks for the replies. =)
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December 23, 2012 4:24:28 AM

Best answer selected by evan10800.
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