There are 2 different listings for this monitor. One is $509 and one is $379. The $509 mentions IPS the other doesn't. Is this the same monitor just different panels?
http://www.newegg.com/Product/Product.aspx?Item=N82E16824176174
http://www.newegg.com/Product/Product.aspx?Item=N82E16824176165
http://www.newegg.com/Product/Product.aspx?Item=N82E16824176174
http://www.newegg.com/Product/Product.aspx?Item=N82E16824176165