1. you need to know if it's CPU limited or not
2. if not then you've a chance
2.1. increase "Processing threads" number untill it'll crash with some strange memory errors (try 19 for the start)
2.2. remember that 770M is more like desktop 650 (correct me if i'm wrong) AND that 120 fps needs exactly two times more GPU horsepower to render them
2.3. so lower madVR's settings or even switch to EVR (just for testing)
