A:AnswerHave to enable 144hz in the settings on the monitor and in the graphic card settings under Nividia control panel. If you need help check YouTube should fine a easy walkthrough explaining how to turn 144hz on in nividia settings
A:AnswerIt is a 1440 monitor. So comparing to others, it is the halfway point between HD and 4k. This resolution is a nice step up from standard HD but a little easier for a computer to handle than a full 4k (2160) monitor when used for gaming. It is technically an HDR400 rated monitor, however that is essentially entry level HDR and would need some fine tuning to make it very effective. Comparing to other monitors in the price point, most claiming to have HDR are also rated the same at 400 level.
A:AnswerYou should be able to run the resolution... It is more a matter of what detail settings you have going in your games. I would think that you should be able to run games decently with an good framerate if only based on the 1080 but I wouldn't expect a 144 refresh rate on ultra settings. There's going to be other factors such as RAM, SSD vs HDD, and CPU etc.
A:AnswerIt does have speakers but it might as well not have them. It other words they are laughably quiet and tin sounding. It does have a 3.5mm audio jack however should you want to use it for audio pass through.
A:AnswerAre you using a HDMI port or USB-C port to connect your desktop PC to the monitor? If yes, it may not support 3440 x 1440 due to a GPU or mother board limitation. Try DisplayPort if your CPU supports 3440 x 1440 @ 60Hz on DisplayPort.
By the way, you may need to buy a graphic card to enjoy gaming with 3440 x 1440 @ 144Hz, HDR400 and Adaptive-Sync.
A:AnswerIt wasn't too bad out of the box on SDR, however some fine tuning can help the black be more deep. As with most HDR400 monitors I've seen, you definitely need to do some fine adjustments (Nvidia CP for me) to avoid what you're describing in darker color gradients. The default setting in windows is far too flat and dim for an HDR 400 monitor.