Need help quick!

Ok Im buying a gpu later today and I found 2 

a 7850 2gb edition.   http://www.newegg.com/Product/Product.aspx?Item=N82E16814161406&cm_mmc=AFC-dealnews-_-NA-_-NA-_-14-161-406


or


a 7870.    http://www.newegg.com/Product/Product.aspx?Item=N82E16814161411


is it worth the extra $50??? Or is it the same

The 7870 hits my max budget

I would have to say its worth $50

I thought it would be just checking :D