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1080P - 1440P - 4K - 8K Why the change?

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Posted · Original PosterOP

I don't get it, first we go by 720P and 1080P witch is the vertical scale. Now were going buy the horizontal scale to call it 4K or 8K. So that in mind, 1920 is 2K. Why and when did it change, is this a marketing thing or were they wrong in the first place to call it 1080 and should have called it 2K? other wise 4K would just be called 2160P.

 

I mean, when I first thought of 4K I started to think that it was 4X the 1080 until I saw the numbers witch is just a double up of the current 1080P standard.


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because marketing and its easier to say and non techies can memorize it easier 


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I prefer this

HD-720p

FHD-1080p

WQHD-1440p

UHD-4k


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I don't get it, first we go by 720P and 1080P witch is the vertical scale. Now were going buy the horizontal scale to call it 4K or 8K. So that in mind, 1920 is 2K. Why and when did it change, is this a marketing thing or were they wrong in the first place to call it 1080 and should have called it 2K? other wise 4K would just be called 2160P.

 

I mean, when I first thought of 4K I started to think that it was 4X the 1080 until I saw the numbers witch is just a double up of the current 1080P standard.

Well im not so sure myself but I do know that 4k has 4x the pixels of 1080p. 


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I mean, when I first thought of 4K I started to think that it was 4X the 1080 until I saw the numbers witch is just a double up of the current 1080P standard.

4k has 8294400 pixels 3840x2160

1080p has 2073600 1920x1080

 

4k has EXACTLY 4x the amount.

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4k has 8294400 pixels 3840x2160

1080p has 2073600 1920x1080

 

4k has EXACTLY 4x the amount.

Couldn't possibly be related to what I just said lol. :P


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Couldn't possibly be related to what I just said lol. :P

Yes. You are 100% correct. I was agreeing with you and adding on.

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Yes. You are 100% correct. I was agreeing with you and adding on.

Im thinking that is where they got their basis of naming it 4k even though that is not really a good idea. I would rather go with uhd myself. 


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Im thinking that is where they got their basis of naming it 4k even though that is not really a good idea. I would rather go with uhd myself. 

I dislike calling it 4k because there are actually many resolutions that are referred to as "4k." As well as UHD.

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 until I saw the numbers witch is just a double up of the current 1080P standard.

the numbers you saw are wrong. 4k is exactly 4x the pixles of 1080p. That is why 1080p still works greak on 4k screens. because there are 4 pixles on a 4k screen per pixle for a 1080p input, there is no need for interpolation like there is with a 1440p screen which does not scale perfectly to 1080


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Cuz 1080p is enough, nuff said.

 

At this stage, the goal should be ensuring that everyone is at least on 1080p, seeing as sub-1080p is still a standard of sorts.


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At this stage, the goal should be ensuring that everyone is at least on 1080p, seeing as sub-1080p is still a standard of sorts.

Agreed. While I don't think 720p is necessarily bad, it's been awhile since 1080p has been out. It's like when eventually they phase out DVDs.

Although I think 1080p looks perfect to me.

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Because, let's says I'm your average Joe whose pretty dumb and doesn't do research

Oh look this TV is 1080 :0! Whoaaaaaaaa cool.

Hmm wait this TV is 1440p, or like 300 difference I cant maths, probably not worth the extra cost.

What's this! This can many r tells me this TV are 4k! 4 times 1080! That r really big number. I r buy really cool TV now!

It's all because the simple consumer cant multiply big numbers together or remember them.

1366x768 = 720p
1600x900 = 900p
1920x1080 = 1080p
2560x1440 = 1440p
3840x2160 = 2160p (4K)


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Posted · Original PosterOP

For those that said 4K is 4 times the amount you clearly don't know how to add.

 

  1080

+1080

=2160

 

That is only 2x the amount not 4 times.


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It's gotta be marketing! When I hear 4k that sounds like some RNS right there!


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Posted · Original PosterOP

4k has 8294400 pixels 3840x2160

1080p has 2073600 1920x1080

 

4k has EXACTLY 4x the amount.

it is not 4x the amount it is 2x the amount. if you need to windows has a calculator built in.


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Posted · Original PosterOP

the numbers you saw are wrong. 4k is exactly 4x the pixles of 1080p. That is why 1080p still works greak on 4k screens. because there are 4 pixles on a 4k screen per pixle for a 1080p input, there is no need for interpolation like there is with a 1440p screen which does not scale perfectly to 1080

please get out a calculator, your another one that can't add 1080+1080 witch comes out to the 2160. It's 2x the amount not 4x.


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Posted · Original PosterOP

I see this is going to be a problem with some people and not knowing how to add.

 

It is NOT 4x the amount of pixels and this is why I brought this up cause most of you think that it's 4x the pixels when its only 2x the pixels, That is were the confusion came in.

 

I don't think anyone is reading my original topic or adding up the numbers. I knew people were confused by this as at first I was. 4K is only 2x 1080P Nuff Said. I was wondering why they changed it from a vertical scale to a horizontal scale.


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please get out a calculator, your another one that can't add 1080+1080 witch comes out to the 2160. It's 2x the amount not 4x.

If you increase the vertical scale, the horizontal does too. "2160" is there just for the sake of convenience. 3840x2160 is the actual number ;)

EDIT: 1080p is 1920x1080. Now let's compare this: 3840 is 2x 1920. 2160 is 2x 1080. 2 by 2 equals 4. if the dimensions were 4 times greater, you'd have 16(!) times the pixels. Do you understand?

 

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I think it should be called 2160p, just sounds cool


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For those that said 4K is 4 times the amount you clearly don't know how to add.

1080

+1080

=2160

That is only 2x the amount not 4 times.

Confuseling isn't it? It can be hard to keep up. If you look at pixel density I'd hazard a guess that that's where they're talking about 2160p being 4x the amount. Just a guess, but I think it's correct. :)


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