Necessary budgetary mini-game

Good afternoon. Now I have

mother http://www.gigabyte.ru/products/mb/specs/ga-p55a-ud3_10.html
vidyuhi - http://hard.rozetka.com.ua/29762/p29762/#tab=characteristics
percent - http://hard.rozetka.com.ua/32744/p32744/

Want to play h1z1 king of the kill, but I play on minimum salary and it happens podlagivaet, I think a little updated, I have 4GB of RAM, I want to dokinut 1 bar 4GB/8GB and put vidyuhi.

None thought to take the gtx 750 ti and 4/8GB operatives. I would like to know your opinion and advice.