You could probably benefit from a motor cooler as well - http://www.modelsport.co.uk/electric-accessories/rc-car-categories/9920/992060&MSAttributeID[43]=1038
Got the MSI 7770, the specs look similar and I would definitely recommend it, I play Just Cause 2 and other games that are a few years old on maximum and Planetside 2 on high using i3 3220 and 4gb ram