So as a civil engineer student I want something for MILD gaming in my downtime to help not stress but of these which would run autocad the best? I will be doing 2d designs mainly as my advisors say I won't be dealing with much 3d designs and I have special computers in my university for 3d. What should I be getting? There is the Lenovo y40 with the r9 275m and 2 sager laptops with the geforce gtx 850m and 860m. I'm not sure what other laptops I could look into but these are well priced specially the y40 as of now. What do you guys recommend, thanks for any advice!