1660 vs 1660ti

Hello everyone. I am going to uprade my graphics card from gtx 650 ti (1gb) to either gtx 1660 or 1660ti from Palit (StormX). Here`s my Low End PC specs: 1.CPU: i5 3470 2.PSU: Cooler Master rs-460w-pcar-a3 3.Monitor: Samsung 1680 x 1050, 60GHz 4. RAM: 8gb DDR3 For such a monitor both cards...