FelixMcFly :
hdmark :
depends a lot of what games you play and what you value more. most people that play first person shooters prefer 144hz over higher resolutions. other games such as league of legends or warcraft dont need the higher framerate.
for me (warcraft, league of legends), i value picture quality over framerate. as long as im at 60 fps , im happy. my next purchase will most likely be a 1440p 60hz monitor.
best bet would be to go to a store and see the difference in person. the 144 hz will be smoother while the 1440p will have greater detail.
also, what graphics card do you have? http://www.guru3d.com/articles-pages/nvidia-g-sync-preview-article,1.html
I see. I will be playing games like dayz, ark, Arma 3, Skyrim. Some of those games won't usually go up to 144 fps. So I guess I should go with the 1440p monitor. Also I'll be using the gtx 1070. But what about ms response time?
the response time of 4ms means its an IPS display. you will get great colors and that response time is the fastest at the moment for an IPS display, anthing 1-5ms is acceptable, higher than that is when you start noticing differences.
You will also ger sharper images since you will have a higher resolution 1440p display.
GTX1070 is the sweet spot for 1440p, you can achieve 60FPS+ on every game, you might have to turn a setting or two in a couple of games but you will take advantage of Fast Sync ( so you won't have to use Vsync or get tearing)
so, for the games you mentioned; you will have a great experience with a 1440p 60Hz 4ms IPS display.