Windows 10: Will hdmi run 1440p 144mhz?

Hi i have a vega 56 , i cant get 3 monitors to work on either 3 display port, or 1 DP and 2 HDMI , i can only get 1 DP and 1 hdmi to work at the same time.
I just rang the store i bought it off and they said to try HDMI on my 1440 p and DP on my 2 1080 p monitors.
Does HDMI support 144 mhz and also i don't think HDMI supports free sync.
So i have a GPU with 3 x DP and 3 x HDMI and cant even get 3 monitors to work.
Any help
Thanks Mark

Edit : i can get all 3 to light up but they dont show up in display settings and cant detect them , and windows spreads over the 3 monitors on a weird way eg , the right hand side of the taskbar moves from main display to another monitor with a white screen, and amd software detects them but when i click on arrange displays it just takes me to the windows settings page.

:)

 

Why exactly is ATi considered be better at HDMI?

I plug my HDMI cable into the card, then into my TV. Those are the steps that I have to do. All the steps you list make absolutely no sense to me.

 

Why exactly is ATi considered be better at HDMI?

Sound works fine only issue with me is underscan when connecting to my tv.

 

PC to TV through HDMI

Hi,

Have you tried to reconfigure your audio settings? If not, try to change your audio output settings to HDMI by following the steps below:

• Press Windows ( ) key + X.
• Select Control Panel.
• Click Hardware & Sound.
• Click Manage Audio Devices.
• Select the HDMI device listed under the Playback tab.
• Click Set as default and click Ok.

Also, we suggest to update your audio driver.

Let us know how it goes.