It’s nitpicking, whether it runs at 3840x2160 or 4096x2160 does not matter. Same goes for calling it 4K or UHD, even when one is technically incorrect.
If even Sony calls their 3840x2160 blu-rays “4K UHD” I’m fine with the average person using them interchangeable.
The logic of some people goes that anything under 4000 horizontal pixels is not “real” 4k. But as mentioned, I don’t care and also call 3840x2160 “4k” simply because it’s shorter than “2160p”.
Calling 3840x2160 "4k" makes sense since 3840 is so close.
On a different note sometimes I've heard people call 2560x1440 for "2k" but neither 2560 nor 1440p are close to 2k so that makes little sense to me
And I don’t want a definition for “4k DCI” or “4k UHD” … just a formally accepted definition of “4k” (in the context of a display resolution). We can all agree that it colloquially means the number 4000, I hope.
There is not one definition, if you hear “4K” you can use the context of the conversation to determine if they’re talking about the consumer 4K UHD format or cinematic 4K, neither of which have a vertical resolution of exactly 4000px. UHD standards are maintained by ITU DCI standards were developed by the DCI group and are now maintained by SMPTE
There is not one definition, if you hear “4K” you can use the context of the conversation to determine if they’re talking about the consumer 4K UHD format or cinematic 4K
I had to go digging but 3840x2160 is both 2160p AND 4k UHD. 4096x2160 is something called 4K DCI which is more of a camera or film industry thing and is rarely used for things like TVs or video games.
Correct, but both can be called 2160p just because of their vertical resolution. Overall both terms don’t matter in gaming because aspect ratio can be changed on the fly (on PC) depending on the output device. Haven’t touched a console in years but I assume they are stuck with a 16:9 aspect ratio no matter what they are playing on?
1080p 1080i 720p (IE the i/p suffix) denotes a SMPTE resolution and timing.
HD/FHD/UHD (720,1080,2160 respectively) also denote SMPTE resolutions and timings.
These are SMPTE ST2036-1 standards, which are 16:9 and have defined (but not arbitrary) frame rates up to 120fps.
4k DCI is still a SMPTE timing, but used for cinema and is generally 24fps (tho can be 48fps for 2k DCI).
It’s SMPTE 428-1.
There are other “4k” standards, but not nearly as common.
If you have arbitrary resolutions or timings outside of the SMPTE standards, and generally fall into VESA standard resolution/timings or custom EDID resolution/timings.
Chances are your computer is actually running 1920x1080@60 CVT-RB rather than 1080p60.
Whilst 1080p60 and 1920x1080@60 seem like they should be the same, some displays (and devices) might only support SMPTE timings or VESA timings.
So, although a display is 1920x1080 it might expect SMPTE, but the device can only output VESA.
No problem.
Displays, resolutions, framrates, edids are all very complex. And marketing muddies the water!
I’ve encountered this issue before when using BlackMagic equipment.
What I was plugging into was described to me as “1080p”.
Laptop directly into it would work, and it looked like 1080p in windows display management.
Going through BlackMagic SDI converters (SDI is a SMPTE standard protocol, so these boxes went hdmi->sdi, sdi cable, sdi->hdmi, and would only support SMPTE resolutions/timings), the display wouldn’t work.
Because the display was VESA only.
4K UHD (along with 8K UHD and 16K UHD) are the consumer format standards for 3840x2160 image formats which includes Blu-ray. Full 4K or True 4K or DCI 4K is the cinematic 4K standard shown at 4096x2160, which many TVs supper via slight letterboxing
It really shows how bad the marketing of these higher resolutions are. We always advertised the vertical lines and then we switched to horizontal lines.
You can’t expect a video game journalist to understand basic display principles. EDIT: /s
“UHD features a 16:9 aspect ratio and is twice the resolution of full HD. In other words, two times 1080p, two times 1920 x 1080 pixels, that is 3840 x 2160 pixels. Having the same 16:9 aspect ratio means it is backward compatible with other HD derivates. However, both 4K and UHD can be shortened to 2160p to match the HD standard and therefore, companies use the terms interchangeably.”
“If you think 4K and UHD are one and the same, I don’t blame you. I blame the companies that LOVE to use them interchangeably all the time. You pick up a Blu-Ray movie disc of a 4K movie and you will most definitely see an Ultra HD label on it. 4K is actually not a consumer display and broadcast standard but UHD is. 4K displays are used in professional production and digital cinemas and feature 4096 x 2160 pixels”
UHD features a 16:9 aspect ratio and is twice the resolution of full HD.
According to Wikipedia resolution is:
The display resolution or display modes of a digital television, computer monitor or display device is the number of distinct pixels in each dimension that can be displayed
Its pixels, why do you think QHD (Quad HD) is called that. Because its 4x the pixels of HD(720p)
You cant talk about only horizontal because you open up the chat to ultrwides and deceptive marketing, such as AMD using “8k” to show off their new GPUs, when in fact they intentially used a ultrawide and marketed it as 8k.
Yeah but that would only be an increase in the horizontal resolution… you’d have 3840 x 1080.
So you gotta double the vertical resolution too, which means you’ve now doubled both horizontal and vertical resolutions, which is equal to 4 times the initial resolution
Actually, display resolution refers to exactly what you call pixel density, and NOT the pixel dimensions. This error is so common that the term resolution has practically been redefined outside of the professional (science and engineering) space, but technically, display resolution and pixel density are the same thing.
Add comment