A lot to consider on getting the right card. Memory size don't sound like it, more on the unlock-ability of shader. Some new cards don't have this option.
Does it matter on the sticker manufacture of this card. To name a few manufactures like Gigabyte, Sapphire, XFX Powercolor and HIS.
Most of the feed backs on Newegg.ca are the gamer side of things, not the bitcoin user.
Which manufacture do you think shows you the power for the buck!! Show me the Power!!!
I know "Everyone" have research to made this decision on what they run in their mining system/rack. From what you read to what you have experienced are sometimes totally different.
What have you picked and why?
Thank you