I finally got a new gaming PC on January 2013. It's an Acer Predator G3620 (Windows 7 Home Premium 64-bit, Intel Core i7 Processor 3770, Nvidia GeForce GT640 3GB, 16GB DDR3 Memory, 2TB Hard Drive, DVD-Super Multi-Drive, Wireless LAN, Multi-in-1 Media Card Reader) When I first got it, it was amazing. My settings were on Ultra and the FPS was 60. I couldn't ask for more. But it's been a year, my FPS dropped to 20-30fps on medium settings. I tried reading all these topics on how to increase fps but it did not work. So I was thinking on upgrading my computer, but the problems is, I don't know what to upgrade. So can you please tell me what to upgrade or what to do to get better performance on my computer? (Oh, and the games I play are DayZ, ArmA, Battlefield, Call Of Duty, Need For Speed, Minecraft, KSP, Assassin Creed, F1, Medal Of Honor, DCS, Flight Sim, X-Planes, War Thunder, World of Planes/Tank, etc...) BTW, I'm a noob at computers..