I have a Moneul Moncaso PC case which is a compact case so I may be somewhat limited in the physical size a graphics card I can use. MAXIMUS IV GENE-Z motherboard, EFI bios, 700w psu, Intel core i5 2500k 3.30GHz cpu. I've never replaced a graphics card, but I understand it can be tricky business to get it right. I'm looking for a good modern card that will handle most if not all modern PC games. This 6570 has been great, but it's time to upgrade. I'm just hoping an upgrade is even possible.