The ones for $240 are the 1GB versions which, BTW, have horribly loud fans. The next step up is a Sapphire for $250 with a third party cooler. The 2GB reference 6950s are $275.
like I said my friend is selling me the cards
it is the reference version of 6950 2gb with dual - bios switch
and he's selling me it for 240 because it's been used