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Overclocking using ati overdrive

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epz0703   02-07-2009 at 09:19:06 PM

does overclocking your graphics card make a difference? i tried running a 4650 at 700mhz up from 600 and changing the mem to 550 from 500 but didn't really notice a difference. Also it made my 2nd display flash all the time. am i doing it wrong?

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xxcoop42xx   02-07-2009 at 09:42:19 PM
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well it depends, you may have pushed your card too much. i just bought a xfx 4850 and used the ati overdrive to auto-overclock it and it went from core/shader=625mhz to 685mhz and the memroy went from 995mhz to 1153mhz but then i noticed in crysis warhead i would get artifacting in the form of white dots but not all the time so i lowerd my memory clock to 1143mhz and it stopped. as for performance increase i gained a few fps with this auto-oc. i guess it just depends on how much of an oc it is.

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theAnimal   02-08-2009 at 01:45:10 AM
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epz0703 wrote :

does overclocking your graphics card make a difference? i tried running a 4650 at 700mhz up from 600 and changing the mem to 550 from 500 but didn't really notice a difference. Also it made my 2nd display flash all the time. am i doing it wrong?



Go up in small steps (from 600), and use Furmark to test for stability each time. Memory OCing doesn't make much of a difference.

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werxen   02-08-2009 at 02:31:48 AM
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xxcoop42xx wrote :

well it depends, you may have pushed your card too much. i just bought a xfx 4850 and used the ati overdrive to auto-overclock it and it went from core/shader=625mhz to 685mhz and the memroy went from 995mhz to 1153mhz but then i noticed in crysis warhead i would get artifacting in the form of white dots but not all the time so i lowerd my memory clock to 1143mhz and it stopped. as for performance increase i gained a few fps with this auto-oc. i guess it just depends on how much of an oc it is.



lol pretty much the same for me but just slightly different.

i tried playing the new stalker game with a STOCK system at max settings for my resolution and it was very choppy. i overclocked my card to roughly the same settings and it performed MUCH better. i can totally say its worth it! and i agree that ATi overdrive on auto always makes your mem overclock WAY too much and cause mad artifcating like that. i had to totally lower my ram as well.

------------------------------ E8500 oc'd 4.5 @ 1.44 vcore with 92mm Zalman
ATI 4850 oc'd 680/1158 with aftermarket Zalman
Asus P5Q Pro mobo
2 gigs 800 Corsair ram @ 4-4-4-12
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epz0703   02-08-2009 at 11:27:32 PM
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Ok thanks everyone. I just wanted a little boost while I was waiting for my 4850. I'll try going up slower.

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checkout   02-09-2009 at 03:31:24 PM
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it could also be that you're other components are being a 'bottleneck'

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