Tell me how to improve this list

[Valkyrieneos]

G3250 CPU
GTX 750 TI
4 GB RAM
430 W PSU

what cheaper gpu can I get to get a better cpu or is this setup going to be fine for league of legends at 1920x1080. See Im getting a major build at christmas but I cant wait that long so I need a temp build for league

 

[Brunostako]

8GB (2x4GB) of RAM is the minimum recommended by the community for gaming.