imac question
I'm thinking of upgrading my imac's gpu to a 6970m I understand that this card is basically a 6850. Before I spend hours pulling everything apart, I have some questions. If anyone can answer any of them it would be greatly appreciated.
1) Would I be able to use Zeus and the 6850 efi to flash the 6970m taken out of a PC laptop, to use in my imac?
2) I read that an older version of zeus actually used the 6970m EFI from an imac, as the 6850 EFI. is this still the case?
3) If not, does it matter? If I use the 6850 EFI, will my 6970m be identified in 'about this mac' as a 6850 or a 6970m?
4) Also, this might be a stupid question, but will I be able to boot to OS X to use Zeus, with the non-flashed card? Then flashing it will simply add the EFI boot screen. I understand that Lion added the ability to run non-mac cards once at the desktop.
5) Lastly, does the VRAM amount matter? The card listed on Zeus says 6850 1GB, but the card I would like to use has 2GB. Does this make a difference?