I can tell You straight away: this monitor is crap, pure and simple.
Don't buy it, You will regret.
Gigabyte AORUS-FI27Q is the worst monitor I have ever seen.
First of all it cannot handle 165Hz with DP and one has to downgrade from its firmware F05 to F03 to even being able to use it?
I can tell for sure: The firmare F05 didn't work well and Gigabyte draw it back.
Check it out for Yourself:
Gigabyte Aorus F127Q - Support
The problem is: it will sometimes lock the resolution to 640x480 and there are no easy way to get around it.
There are many threads on different forums that says the same.
At first one can blame is the graphics driver itself of course, but with different drivers and change from DP to HDMI - suddenly it works?
Gigabyte answer is: use connection via hdmi.
That is a problem by it self: You buy an expensive monitor 27" 2560x1440 @165HZ only on DP, while a HDMI connection only can handle 144Hz.
And Gigabyte want You to run it on a HDMI connection?
Seriously?
Never Gigabyte again!
Best regards from Sweden