For the past 5 years I had been using an AMD 5550 and I left GPU off as it was not at fast as my AMD 6 core. I changed to an AMD5750 (needed a low power card) and two things. It is now 25% faster in rendering long videos and I can finally use the NewBlue Titler - it would hang when using my 5550. For a $100 video card, I am really happy as I can tell the difference in both Movie studio and PS/LR cc.