PC specs that affect gaming?

Well, I'm pretty bad with all this stuff, so I might need some help here if possible :D My PC isn't quite good (running LoL at 45-60 FPS), and I'm planning to purchase Overwatch soon (but it has nothing to do particularly with it, doing this just as much for LoL too) and I'm afraid I won't be able to run it on high graphics if I won't change some of my specs first. I'm using (Intel) Pentium Dual-Core E5400 as CPU, (Nvidia) GeForce 9500GT as GPU, and 4GB RAM. Are these that bad I'll need to replace them? any suggestions for replacements with moderate prices? is there anything else I didn't mention that has a high impact on gaming experience? Thanks in advance :)
Report as:
Offensive Spam Harassment Incorrect Board