QUOTE(WinterAngeLs @ Sep 4 2019, 04:01 PM)
My 12 yrs old Samsung 226bw is getting more white patches day by day, tried some methods to rectify it but still no use.
Years back like to play strategy games so a TN panel with 60hz and R9 270 2GB could still satisfy me. Recently trying more on FPS and racing titles. Felt the 226bw struggles to keep up. So thinking of replacing it with a larger 27" 144hz panel.
But i'm not sure to get a 1080p or 1440p.
Current setup:
i5 4670 3.4Ghz
Sapphire RX580 8GB
Hyper-x 16Gb DDR3 1600mhz
Correct me if Im wrong,
If 1080p, can get better frames, higher details but less sharp with a 27" screen
If 1440p, can get sharper image, future proof but lower frames, lower details
in short, yesCurrently eyeing on:
1080p: Acer VG270P
1440p: Acer VG271UP
Also I'm unsure of the smoothness/performance if let's say the gc is only pushing out 60fps to a 1440p 144hz monitor.
Hope sifu here could shed some light and suggestion on models.

Im using a 27" 1440p 165 Hz Gsync monitor and I can tell you unless you are running a 2080 super/2080ti you can never touch 144fps on modern AAA titles, heck not even all modern games can reach the max 144/165hz on 1440p because it is super demanding.
To answer your question, the monitor is an investment, you need higher graphic card spec to reach high refresh rate gaming. However, if you are playing CS:GO/PUBG/APEX/DOOM/FORTNITE then the 1440p max frame rate can be achieved easier by lowering some eye candy since these FPS titles doesn't demand as much as other AAA titles.
If you just want a high refresh rate gaming on 1080p then your CPU also matters too. 24"1080p 144hz TN panel should be more reasonable within your PC spec now. If you go into 1440p 144Hz I am afraid you gotta invest more into your entire PC hardware for the eye popping candy.