I think I know the reason why the XFX 7900GS is such an overclocking beast. I ordered the XFX 7900GS the day after it came out from newegg. http://www.newegg.com/Product/Product.asp?Item=N82E16814150183
When it arrived I immediatley installed it and overclocked it to 580/1520 and it was totally 100% stable. While benchmarking I was looking at the box, and looking at the numbers "480M", I saw there were stickers there. After taking off the stickers I saw what it actually said:
XFX Geforce 7900GS 550M EXTREME
I assume that means that this card originally was going to be overclocked to 550MHz, making it by far the fastest 7900GS on the market. Maybe they changed it because they were worried about the yields with that kind of overclock, but apparantly I got one of the good ones. I'll get pictures once I find my digital camera.
EDIT: if you look close enough at the box from the review @ [H], you can see the two stickers on the 4 and the 8.
When it arrived I immediatley installed it and overclocked it to 580/1520 and it was totally 100% stable. While benchmarking I was looking at the box, and looking at the numbers "480M", I saw there were stickers there. After taking off the stickers I saw what it actually said:
XFX Geforce 7900GS 550M EXTREME
I assume that means that this card originally was going to be overclocked to 550MHz, making it by far the fastest 7900GS on the market. Maybe they changed it because they were worried about the yields with that kind of overclock, but apparantly I got one of the good ones. I'll get pictures once I find my digital camera.
EDIT: if you look close enough at the box from the review @ [H], you can see the two stickers on the 4 and the 8.