Out of these two cards which one would you guys recommend? This is going to be a card I'll have for 2-4 years. So future proofing is required, 1440p/2160k etc and etc.
http://www.amazon.com/EVGA-GeForce-256bit-Graphics-04G-P4-3975-KR/dp/B00R3NK2LE/ref=sr_1_1?ie=UTF8&qid=1424415942&sr=8-1&keywords=evga+gtx+970+ssc
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202079&cm_re=sapphire_r9_290x-_-14-202-079-_-Product
My current Power supply is
http://www.xigmatek.com/product.php?productid=39&type=specification
http://www.amazon.com/EVGA-GeForce-256bit-Graphics-04G-P4-3975-KR/dp/B00R3NK2LE/ref=sr_1_1?ie=UTF8&qid=1424415942&sr=8-1&keywords=evga+gtx+970+ssc
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202079&cm_re=sapphire_r9_290x-_-14-202-079-_-Product
My current Power supply is
http://www.xigmatek.com/product.php?productid=39&type=specification