Hi im thinking I of upgrading my cpu because I feel like my cpu (Intel 2 Duo @2.00 Ghz) is really bottle-necking my graphics card (NVIDIA GTX 750ti) and was wondering how to approach it seeing as I am going I need to buy a new mobo if I'm going to upgrade my cpu because it is socket 775lga which is discontinued.my budget is about £150. I would much prefer. A quad core but if theres a dual core good enough I would love to hear your recommendation. Thank you