This is the 1440p monitor I use and love it a bit slow response time but never considered it a factor since it takes you about 200ms to blink your eyes. For G sync it's not even a factor unless your using a high refresh rate monitor and not really worth spending money on for sure.
http://www.newegg.com/Product/Product.aspx?Item=N82E16824009626&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker,%20LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
IPS with very good color and a very good price 27"