Can i get 120fps and 1080p on the LG 24GQ50F-B Ultragear with an high speed cable on xbox...

I want to see if a high speed HDMI cable can connect to a LG 24GQ50F-B Ultragear

No, it likely won't, so make sure you can return it

this is a $100 monitor intended for basic office work. It achieves its alleged frame rate using computer assist. The HDMi timings in the manual are not exact multiples of 60 and will likely have timing issues

Real 120hz displays start closer to $500

Hi Costin. My name is Kyle and I'm an independent advisor.

It should work as long as the monitor can support 120Hz (just because it supports 165Hz doesn't mean 120Hz will work), and it can provide that signal over HDMI (some monitors only provide high refresh rate over display port).

I'd recommend reaching out to LG about this as there doesn't seem to be any information online for this monitor.

Thanks,
Kyle

No I have the ultra high speed cable but would the monitor support that and run on 120fps?

Any HDMI cable will work. They just recently ratified the new standard of 1.4 so the cables are as follows:

As of the HDMI 1.4 specification, these are the following cable types defined for HDMI in general:]

Standard HDMI Cable – up to 1080i and 720p

Standard HDMI Cable with Ethernet

Automotive HDMI Cable

High Speed HDMI Cable – 1080p, 4K, 3D and deep color

High Speed HDMI Cable with Ethernet

So you don't NEED to purchase a High Speed HDMI cable, but it would be best for the future if / when the Xbox One goes to 1080p or 4k.