21/9 monitor what cable for best quality?

[x-evil-x]

im currently using an hdmi to adapter hdmi to my 15” 2016 MacBook Pro. It’s pretty good but seems soft on stuff like YouTube 1080p.
The monitor is a 34” 21/9 3440x1440.
Would using a usb-c to display port work better? Or usb-c to hdmi cable?

 

[Stephen.R]

seems soft on stuff like YouTube 1080p

Can you define what you mean by 'soft'?

 

[twanj]

Is there a way to tell what resolution it's outputting?

Is it a newer HDMI cable that does better than 1080? I think the older HDMI cables only did HD resolution and not above.

I would think thunderbolt to displayport would be the best cable?

 

[x-evil-x]

Can you define what you mean by 'soft'?

Soft as in not as sharp as normal 1080p looks to me. I don’t expect the panel to look as sharp as the MacBook pro’s screen but I expected more especially video I’m seeing.
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Is there a way to tell what resolution it's outputting?

Is it a newer HDMI cable that does better than 1080? I think the older HDMI cables only did HD resolution and not above.

I would think thunderbolt to displayport would be the best cable?

It’s the cable that came with the monitor. It’s outputting the correct resolution in monitor settings it says. There are settings in the monitor that have 1:1, normal, wide, cinema ext... I just kept it in normal and tried 1:1. They seem the same to me.

 

[Stephen.R]

Do you have the same issue if you play a 1080p video file in say quicktime or iTunes (or some other local video player)?