Title basically says it all, I have a msi geforce gtx 960 2gb and am disappointed in the performance as it cant run some of my games at 144 fps to benefit from my 144 hz monitor. Would buying a gtx 970 4gb (http://www.amazon.com/EVGA-GeForce-Quieter-Graphics-04G-P4-2974-KR/dp/B00NVODXR4/ref=sr_1_1?s=pc&ie=UTF8&qid=1452445641&sr=1-1&keywords=geforce+gtx+970) be a good investment? Will I see a difference? Thanks!