Looking for good gaming monitor!

[QuestionableUsername]

I'm looking for a gaming monitor that's preferably high resolution. I've never experienced 4K, I have seen 1440p on a Mac/Phone (Retina Display). Although I would rather have higher frame rates rather than unnecessarily high resolutions (though it would be amazing to have a 4K). Other things that I would like to have:
-G Sync Compatibility
-Reliability
-No crazy temperatures
-144 Hz Refresh rate
-Big Screen (No exact but 20-27 in. seems to be a popular choice.)
-Price isn't too big of a deal, just don't go crazy!

Haven't read into 4K much but, I've seen the Asus ROG Swift, but I've heard that is not reliable what so ever so I'm reluctant. I haven't seen many good monitors that match my requests (as of now), I've heard that Asus will release new and better monitors in March, I would love if it does because I'm in need of some more options. March is still a ways away though.

 

[FastGunna]

I have an ASUS VG248QE and havent had a single issue with it. The ROG Swift is the only one that I know of that is above 1080p and 144hz. I haven't heard anything about 4k 144hz but the only games you would be able to get that sort of frame rate with on current hardware are older or well optimized indies.

 

[QuestionableUsername]

The only games that you can get with 144Hz 4K, a new technology is older games? How does that make sense?

 

[FastGunna]

Modern hardware isnt strong enough to run modern games at 144 FPS and 4k. https://www.youtube.com/watch?v=dwiuD1WtnNs You could come close on Bioshock infinite or Tomb Raider which are both almost 2 years old.

 

[QuestionableUsername]

Oh ok, do you recommend 1440p or 1080p then? I plan on using a GTX 980 (might dual SLI if i have enough money left).
Again I would love 144 Hz.

 

[FastGunna]

I would go for the ROG Swift primarily because of G-Sync, It would still be hard to get 144 FPS on 1440p but with G-Sync it would be an overall smoother experience. I would also get a single 980 for now, try it out and if you arent happy with the performance your getting then grab a second.

 

[QuestionableUsername]

Ok, I might go for a 1080p just because I've either heard REALLY good reviews for it and REALLY bad reviews. Reasons for bad reviews were flickering, terrible anti-glare, horrible contrast, and dead pixels. If anyone's had experience with that monitor I'd appreciate you sharing your experience with it.