As the title suggests, I'm looking to upgrade my PC for Stormblood. I'm looking to reduce the framerate drops when playing, but I know little to nothing about computers. Funny, seeing as I spend all my free time on the internet for the past 14 years. But hey, can't know everything.

GeForce GTX 650
AMD A8-6500 APU with Radeon(tm) HD Graphics
3.5 GHz
8.0 GB
Microsoft Windows 10 (build 14393), 64-bit

I'm not sure what to look into upgrading, and I'm only working with about $500. If anyone can point me in the right direction to raise my consistent fps in preperation for Stormblood, I'd greatly appreciate it.