which is better the x6 or the x4 as in fastest.?
http://www.newegg.com/Product/Product.aspx?Item=19-103-849
vs
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103894
http://www.newegg.com/Product/Product.aspx?Item=19-103-849
vs
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103894