you Should have to go with i5 7400 or i5 6400 (any which sit cheap) though i5 is quad core and it will Supports better GPUs and Give almost double performance in games... than your current g4560.. and you dont need to update bios of your board... because u are using a 7th gen chip(yes g4560 is 7th gen) and you can both install 6th gen or 7th gen i5 on your asus board