So my PSU is poor, it is 500w and has 20A on 12v rail, I found a reference GTX 960 (reason why reference is because they need only 1 6pin connector). I went on power supply calculator and my whole system consumes 271W on load, and 16.6A on 12v rail. So I guess that GTX 960 will be fine. Btw GTX 960 Reference is 120$ and as well as I found for the same price MSI ARMOR GTX 960 (they are both 2gb). What PCIe connectors is MSI ARMOR version using? If it is using 6+8pin connectors then I guess I am fine if I just plug in 6pin connector since it should be enough (75W from PCIe and 75W from 6 pin connector)