Spec me a G-Sync Monitor - £600 or below

[iJamo]

Hi all,

The time has come to upgrade from my non-banded 60hz monitor.

I'm looking for either 24inch 1080p or 27inch 1440p.
G-Sync, 144hz+ and low response times are a must.

Mainly playing Counter Strike, but also single player games such as The Witcher 3 and Dark Souls III.

Currently eyeing up the Dell S2716DG, any suggestions?

 

[iJamo]

Thank you all for your suggestions. I'm going for IPS display, its between two monitors:

Acer Predator XB271HU
or
AOC AGON AG271QG

Any further suggestions between the two?