I recently purchased 2 gigabyte 6950s after research led be to believe the flashing was phased out because the switches had been removed...I now found out that the SAPPHIRE 6950 can still be flashed. 2 questions...would it be worth my time to return the 2 gigabyte ones i just got to buy these (aka whats the real fps difference between the 2 at 1680x1050) and is there any way to flash the gigabyte 6950 being that it doesnt have the bios switch