Looking to invest around $150 on a graphic card + processor, I'm looking to get the best bang for my buck so some help would be appreciated

Currently got a really low value pc, so anything is really gonna be an upgrade from this..
Currently:
Nvidia Geforce GT630
Intel Pentium E5300
Was looking online, and found
Gigabyte GeForce GT 710 2GB GDDR5 + Intel Celeron G4900 Dual-Core 3.1GHz 2MB
Not so sure about the Celeron tho, as I've had bad experiences with them so was maybe looking into an AMD processor?
What are my best options here?
Thank you!