Not to forget the overclocking capabilities, if you're going to OC, the motherboard is very important. If you're upgrading anyway and you really want to OC go for a Z77 motherboard, it's the best chipset for a motherboard that you can OC from. And don't forget, if your CPU isn't a 'K' model then don't expect much from overclocking or even don't upgrade at all because a motherboard can't provide much for performance except some new features that has nothing to do with gaming probably.