So I was just forced to upgrade my gpu(my 970 burnt out) and I got a 1080 ftw2. Now I'm trying to invest in a new monitor. Now I know gsync is all the buzz now but I'm not exactly sure what it does and if it's worth the money o get a gsync monitor over one without. I'm looking for a 4k monitor to actually utilize the 1080(and I may even upgrade to a ti within the 90 upgrade program). Now I don't want to send $1000 on a monitor and I know that may be frowned upon, but I'm trying to figure it a good 27" 4k monitor and just wanted to see if gsync is a necessity or a nice to have.