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Good or bad? Evga 680 4Gb to sapphire 7970 oc - Page 2

post #11 of 13
Quote:
Originally Posted by Raf Leung View Post

by the way guys so i flash the card to the ghz edition is that one it is basically 100% same with the latest or the newest 7970 ghz amd made? also anyone got any news on the next gen card im thinking if next gen card is coming out in the next 6 months i might just get a mid rang one smile.gif

don't flash your BIOS. manually overclock using msi afterburner or sapphire trixx. save the settings in OC profiles and load it up only when you play games. the rest of the time leave it at stock settings. the HD 7970 Ghz runs at 1050 mhz core and 6000 mhz memory. the sapphire HD 7970 OC runs at 1000 mhz core and 5800 mhz memory. you can easily run the card at 1100 mhz at stock voltage and 1150 - 1200 mhz with voltage overclocking.

also the brown PCB version is better because it uses reference AMD HD 7970 PCB design

http://www.umart.com.au/pro/products_listnew.phtml?id=10&id2=248&bid=2&sid=88297

the card you picked has some PCB changes and is a custom PCB.
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post #12 of 13
Thread Starter 
so which of the 7970 has the reference pcb ? and do u know if they have the bundle included?
     
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post #13 of 13
Quote:
Originally Posted by tsm106 View Post

doh.gif

His card is 4gb and he says he sold it lol. For the record kepler is slower clock for clock.



OP, for whatever reason I didn't notice the OC at the end of your title. The Sapphire 7970 OC is a very good air card and it has voltage control in the case you want to add volts later.

Hahahaha sorry missed the part that he said he sold it.

But you do realise 4GB on a kepler is useless, right? The 256 bit bus width is not big enough to utilise the 4GB rendering it a marketing gimmick. The 7970 on the other hand with 384 memory interface width will utilise up to 3GB without breaking a sweat so it is still the king of VRAM. Kepler is slower clock for clock yes but that doesn't matter. What matters is at max OC, GTX680 and HD7970 are comparable in performance. This brings us to the final point that larger proportion of games out there are better optimised for Nvidia over ATI.

So in summary, he will see performance drop.
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