Will my cheap rig need more than 4GB of RAM?

[Heiseh KiiN]

Specs
PSU: Corsair CX430M
MB: MSI B85M-E45
CPU: Pentium G3220
GPU: GTX 750TI
HDD: WD 1tb
RAM: Kingston HyperX Fury 4GB

My question is: Is there games playable on my cheap rig that will need more than 4gb of ram? Or should I stick with 4GB until I upgrade my cpu?

I plan to upgrade part by part, and I should start with the CPU, but CPU's are very expensive right now.
i5 4690k, for example, costs R$1.100 (USD 350) here.
GTX 970 costs R$1.850 (USD 600, more or less)

 

[Martin1982]

You could test it play a new game Tab out ctrl+alt+ del open task manager and monitor your ram usage during gaming.

 

[Heiseh KiiN]

I just have some <2013 games (Skyrim, Dishonored, Crysis 2, DMC, Spec Ops and Fable III), all running great with <2GB memory usage.
I am going to try with a new game. Otherwise I'll just get a SSD instead.

 

[targetdan]

I would get a better pus.. the cx range are unreliable