First time poster on the site, hoping to get some advice on whether or not my desktop can be upgraded. It was custom built for me 6 years ago and in the past year I've been noticing that it is having trouble running games like Overwatch and it feels slower overall. Otherwise, it still works pretty well and I'm hoping it can just be upgraded. I'm sure the CPU and graphics card need replaced, but I'm worried the motherboard needs replaced, too, and at that point would it be better just to get a new rig?
It has 8GB of RAM and is running Windows 10.
Thanks in advance.
AMD 990FX + SB950
ASUS/NVIDIA GeForce GT 440