I'm only recommending the HDMI-DVI thing because of 2 major things and 1 minor.
It's a cable, it's not going to place any undue stress on the output on the video card.
And that there will be no quality loss at all over any other connection used
And the minor thing is Price, it's $7.99.
That said, since I am mostly about price and it being a cable, here is a DP to DVI cable for around $10 http://www.amazon.com/gp/offer-listing/B002CSUZSU/ref=dp_olp_new?ie=UTF8&condition=new