Looking for graphics card to pop in my dell precsion t3610. I would prefer no external power needed also my video card power limit is 300 watts. My budget is around 150 but could go up if worth it. My processor is an intel xeon cpu e5-1607 v2 @ 3ghz 4 cores. New to the pc gaming community and trying to upgrade a freebee to something decent, thanks in advanced for all the help