What is the difference between 4K and HDR?

Elion xTEAMx · Nov 7, 2017

I had a long tank to day with the LG suport (my TV) and the X box chat support . I was trying to understand why my TV could run the games in 4k (at least i think it does under gaming of cod WW2 that looks much better.

the images below are my status creen and since my TV dont support HDR (new one incoming) it seems I should loose out on something, I just dont get what as when reading about HDR its HDR10 that seems to be connected to 4K not just coloring.

So enlightend me ? Anyone ?

:)

Hoveringpie · Nov 7, 2017

Help need a new a tv!!

A Panasonic viera is a good choice, I have one in 50" 4kk, even though the Xbox doesn't output in 4k you can see the difference between hd and 4k.

J.R.G. · Nov 7, 2017

Repost: issues with graphics on Xbox one. PLEASE HELP!!!!

What kind of "brand new" T.V.? There is a big difference between a 720p Element and a 4k Samsung; heck, I got a 720p Samsung that looks better than the 1080p Element in the extra room.

Player117966016 · Nov 7, 2017

4K is the resolution; think like 720p or 1080p. It's 4 times the area of 1080p.

HDR is a color reproduction technology. If you remember Game Boy days, the Color could produce few hundred different colors (16^3 colors total). Most TVs up until now encoded the colors into 3 values known as RGB (a combination of 0-255 each; so 255^3).
HDR expands that range by allowing 10 or even 12 bit encodings. The way it ties with the RGB values is via binary, 255 decimal is 1111 1111 in base-2 also known as binary, which is why it's called 8-bit encoding. A bit can only be 1 or 0. So if R G and B can
have 255 red, green, and blue values which is 255^3 combinations, HDR10 can do 1023 values for each, HDR12 can do 4095. These colors are both intermediates between the colors already being reproduced by your TV but also "deeper" reds, greens, and blues your
TV couldn't render before.

Hope that helps!

Player117966016

4K is the resolution; think like 720p or 1080p. It's 4 times the area of 1080p.

HDR is a color reproduction technology. If you remember Game Boy days, the Color could produce few hundred different colors (16^3 colors total). Most TVs up until now encoded the colors into 3 values known as RGB (a combination of 0-255 each; so 255^3).
HDR expands that range by allowing 10 or even 12 bit encodings. The way it ties with the RGB values is via binary, 255 decimal is 1111 1111 in base-2 also known as binary, which is why it's called 8-bit encoding. A bit can only be 1 or 0. So if R G and B can
have 255 red, green, and blue values which is 255^3 combinations, HDR10 can do 1023 values for each, HDR12 can do 4095. These colors are both intermediates between the colors already being reproduced by your TV but also "deeper" reds, greens, and blues your
TV couldn't render before.

Hope that helps!

KingOfTheRen

Everything is fine, you still get 4K and HDR just not Dolby Vision which is just a branded version of HDR. There really isn't much of a difference between HDR10+ and Dolby Vision, personal preference just like Dolby and DTS audio.

MobileRez

thanks I saw that QUEENMISFITS. however that's the post i used to get to where I am now. it did not solve the issue for me that I am facing and in that article it states

"On the Broadcast & capture screen, select "Game clip resolution" then select 4K SDR, or 4K HDR. 4K SDR will record videos in a standard colorspace, while 4K HDR will record them in High Dynamic Range,
making them viewable in full detail only by those with HDR-compatible TVs."

So it explains a little about the difference between 4K SHD and UHD color space but not why the saved file is coming out as 1080p when my settings are clearly set to 4k.

X Kalomn

What does it depend on in the game? Does it record differently if the game isn't full 4k, or if it's HDR vs SDR?

staituk

Ok this is where I am a 4k noobie. I take it hdr is different from 4k?

What is the difference between 4K and HDR?