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View Full Version : 7900GT/7900GTX = same core, minus the volts?


majestic
03-11-06, 02:12 PM
I read the digit-life review (http://www.digit-life.com/articles2/video/g71-part2.html), and from what i have gathered, the cores are identical.

Would I be right to say that the only difference between the 7900GT core and the 7900GTX core is the voltage? 1.2V and 1.4V respectively - as mentioned in this voltmod article (http://www.vr-zone.com.sg/?i=3330).

If thats true, then a simple volt mod to bring the 7900GT core back up to 1.4V would allow for something like, 650mhz core speed? The 7900GT memory can already reach 1.7ghz (at least mine can ;) ).

So, 7900GT + volt mod + fat cooling = 7900GTX?

CaptNKILL
03-11-06, 02:39 PM
They are probably speed binned. Meaning, the cores that couldnt take the 1.4V and 650Mhz were downgraded to either the overclocked GTs or the reference clocked GTs.

So its not like you're guaranteeing GTX performance with a voltage increase. Theres a good chance the card wont be able to take it.

Lfctony
03-11-06, 03:08 PM
Remember how many 6800GTs died 18 months ago from extra voltage? That comes to mind when reading your post...

bkswaney
03-11-06, 03:26 PM
Remember how many 6800GTs died 18 months ago from extra voltage? That comes to mind when reading your post...


"lol" I was thinking the same thing. :p

keith33
03-11-06, 05:11 PM
Don't forget the extra 256mb of ram lol. MAYBE if you put the cores under water and overvolted, you might get a desired result. After sinking that much cash into a card though, I wouldn't risk it.

shabby
03-11-06, 05:31 PM
Don't forget the extra 256mb of ram lol. MAYBE if you put the cores under water and overvolted, you might get a desired result. After sinking that much cash into a card though, I wouldn't risk it.

Nice avatar, think i'll switch mine to Jack screaming DAMNIT! :)

tieros
03-12-06, 12:38 AM
There's already some volt modded BIOSes floating around the net. I expect to see a lot of 1.3V/600MHz GTs popping up soon :D I'd be too chicken to try 1.4V on a brand new shiny one.

I don't think heat is going to be much of an issue with a decent cooler. With the GT core @ 550, I can't get the GPU to hit 50C, no matter how long I stress it. I guess the big issue is the PCB and power regulation quality.

Let me know when you hit GTX speeds :D