I'm looking for a high end graphics card that can play most new games at max extreme performance settings and need some help determining which ones are really good. I'm only looking to spend between $200-$300 if possible. I have a 1 GB graphics card now that cost me $40 but it can't run games at max settings without some sort of lag. Any help would be appreciated, thanks. I'm also running 8 GB of DDR2 memory and a quad core processor.