I'm completely new to buying/making computers, so I'm going to need a lot of help. I've been told that building my own PC will save me a lot of money, but I'm not even sure how I would go about building one. I might even be able to just upgrade parts of my current one, but I'm not sure. This is currently what I have:
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) (Pretty sure this is good...)
Processor: Intel i5 CPU 750 @ 2.67GHz (4 CPUs), ~2.7GHz (If someone could explain to me what the part after the 750 means, that would help. I think the 4 CPUs means quad core. I know the i7 is available, is it worth it?)
Memory: 6144 MB RAM (Not sure if this is good)
Page File: 3297 MB used, 8906 MB available (Not sure what this means)
Model Number: s5680t
Graphics Card: ATI Radeon HD 5450 (I think this might be my biggest problem)
Approx. Total Memory: 3808 MB
I don't know if you need anything else, so let me know if you want more details.
Anyway, I want to have a very good gaming PC that I can use to play and record games with good graphics and no lag. I make YouTube videos, so this is why I want to be able to record. Right now, I have to play games like League of Legends and World of Warcraft on very low graphics. Am I better of making a new computer all together or just upgrading parts of the current one I have? I play a lot of games, but right now it seems whenever I bump up my graphics I begin to lag a lot. On more graphically intense games a lag on very low. I'm thinking I may just need a better graphics card, but no idea.