What is the Best Gaming Monitor ? (1440p 165hz vs 4K 60hz) PLEASE HELP !

[Epsilons]

I'm on the market for a new gaming monitor.

I'm running an Intel Core i7 6700K @ 4.4Ghz with 16GB DDR4 2133mhz and a OC GeForce GTX 1080. That being said, I was looking for a ACER or ASUS monitor, but I don't know if I prefer to go 4K (2160p) @ 60hz or 1440p @ 165hz

I have a couple of Monitor in mind, price is not a problem, I just want the best gaming experience, and I hesitate alot between high refresh rate VS 4K resolution. The price I listed are those of my country (Canada).

http://i.imgur.com/WdHO3U0.jpg

ASUS ROG PG279Q (27" 2560x1440 G-Sync 165 Hz, IPS)
1029.99$

ASUS ROG PG27AQ (27" 3840x2160 G-Sync 60 Hz, IPS)
1149.99$

ACER PREDATOR XB271HU (27" 2560x1440 G-Sync 165 Hz, IPS)
949.99$

ACER PREDATOR XB271HK (27" 3840x2160 G-Sync 60 Hz, IPS)
1149.99$

ACER PREDATOR XB321HK (32" 3840x2160 G-Sync 60 Hz, IPS)
1699.99$

Which one should I get ? Please give constructive feedback. I want to make the best decision possible.

I heard I could have scaling problem in some games at 4K with very small text / icon making games impossible to play at that resolution, I also heard Windows 10 is not 100% ready for 4K and that the windows desktop have scaling problem aswell.

 

[Epsilons]

Can anyone help with this ?

 

[Ryapnage]

Facing the very same dilemma. Am using 6850K + Asus GTX 1080 OC Edition. Mind letting me know how you decide?

 

[Epsilons]

Facing the very same dilemma. Am using 6850K + Asus GTX 1080 OC Edition. Mind letting me know how you decide?

I think i'm going to wait until the end of 2016. I have read they are releasing DisplayPort 1.3 very soon and they will announce new 4K 120hz monitor with Display Port 1.3 and also 1440p 240hz monitor

 

[fry178]

1440p is fine for screens smaller than 40in.
i rather have higher refresh (Hz) which allows for higher fps (lower latency) if the gpu can handle it.