New Video Card

[Baltyre]

I'm getting a new gpu to upgrade my computer for 5 to 8 boxing.
I ordered this one : SAPPHIRE Radeon HD 7950 OC 3GB for 300€
http://www.newegg.com/Product/Produc...82E16814102963

Seems nice, 3Go are usefull for multiboxing, the gpu seems good and can be overclocked easily to be just 5% less efficient than the 7970.
http://hexus.net/tech/reviews/graphi...d-7970-clocks/
So it will be in pair with a GTX 670, for a lot less money.

The bad thing is that i not a big fan of amd, bad compatibility with linux, and some games including wow are optimized for nvidia.
But i checked some benchmark and it seems that the gap is less important without multi-sampling.
http://www.tomshardware.com/reviews/...k,3123-10.html
Anyway, even if the game is nvidia optimized, it seems to me better to bet on his cheap 3Go video ram for efficient multiboxing.

So do you think it's a good idea, or do you have better option for a 300€ card ?
If i want to use nvidia all the gpu using more than 3Go cost nearly 500€.
Exept this one, but i think it could be not enought powerfull : http://www.newegg.com/Product/Produc...82E16814127684
But i'm still curious about this one, because i remember, back in the wotlk days, when my last gpu was HS, i temporary replace it with a 50$ passive gpu for 5boxing and ... surprisly it was working well. Not perfect but playable. So i'm curious about the real need of a powerfull gpu for multiboxing wow.