Title mostly explains it.
Should I get this GTX 660? http://www.newegg.com/Product/Product.aspx?Item=N82E16814130836&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Video%20Card%20-%20Nvidia-_-EVGA-_-14130836&cm_sp=&AID=10440897&PID=7228659&SID=GBWCZG
Or should I get this GTX 760? http://www.newegg.com/Product/Product.aspx?gclid=CjgKEAjw2KCcBRCQ_6mztcunhEgSJABPxOF1Tx6-uL6fD0H1fRfFAdbp2yNgOqEhDoo8w74Wv06M_PD_BwE&Item=N82E16814121775&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Desktop+Graphics+Cards-_-N82E16814121775&ef_id=U1FQvQAAAeHrJyMx:20140531000456:s
Keep in mind that I only have a 450W PSU. I worry that if I get the GTX 760, its performance will be 'bottlenecked' by my PSU.
Should I get this GTX 660? http://www.newegg.com/Product/Product.aspx?Item=N82E16814130836&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Video%20Card%20-%20Nvidia-_-EVGA-_-14130836&cm_sp=&AID=10440897&PID=7228659&SID=GBWCZG
Or should I get this GTX 760? http://www.newegg.com/Product/Product.aspx?gclid=CjgKEAjw2KCcBRCQ_6mztcunhEgSJABPxOF1Tx6-uL6fD0H1fRfFAdbp2yNgOqEhDoo8w74Wv06M_PD_BwE&Item=N82E16814121775&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Desktop+Graphics+Cards-_-N82E16814121775&ef_id=U1FQvQAAAeHrJyMx:20140531000456:s
Keep in mind that I only have a 450W PSU. I worry that if I get the GTX 760, its performance will be 'bottlenecked' by my PSU.