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[BC] Tech Specs for Ultra HDTV Advance - Page 3

post #21 of 42
Neat

But the actual applications in the consumer market are years off. We need a device capable of running that resolution without costing a kidney first.
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post #22 of 42
Quote:
Originally Posted by fluxlite View Post
If anyone is wondering what res this is, it's 7680×4320
Interesting pick of resolution although it's most likely not a coincidence. It's close to the human eye capabilities. If I remember correct the vertical resolution was a tiny bit higher but horizontally approx 7600 pixels should be able to "max out" the region where humans have capability to see with both eyes (i.e., 3 D vision).

The "human eye capabilities" in here are in the "pixels per arc minute" sense.

Would be sweet to have these resolutions available in the computer monitors
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post #23 of 42
Quote:
Originally Posted by Icekilla View Post
Do we even have the graphic power for such resolutions? Sure, it sounds nice in paper, but I'm afraid we're a bit too far from being able to move that many pixels on a screen

You can drive such resolutions all right. As long as you dont go nuts with AA or have enough vRAM to pull off AA at these reolutions.

Max you can do currently is about 36 megapixels per gfx card if you use Eyefinity 6 card with six 2600x1560 displays - these are approx 6 MP per screen. Although you would be somewhat limited by the amount of vRAM you have at that resolution.

I think max resolution what direct X 11 is capable of handling is 8k x 8k but I'm not too sure about that.
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post #24 of 42
Everyone can forget about trying to drive that many pixels (on a single screen) with any currently existing technology. The problem is not rendering power, it's the transport.
HDMI and DVI don't support resolutions anywhere near that high.

Even current DisplayPort/Thunderbolt implementations won't go so high as that. For example, current Thunderbolt spec is around 10 Gbit/s for the display interface at best can do 2560×1600@60 Hz. DisplayPort will be about the same. At least DisplayPort/Thunderbolt is scale-able. There is no theoretical limit, it is only limited by the amount of available bandwidth. So they will be able to do it in the future, but you're going to have to upgrade.
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post #25 of 42
Quote:
Originally Posted by Carniflex View Post
You can drive such resolutions all right. As long as you dont go nuts with AA or have enough vRAM to pull off AA at these reolutions.

Max you can do currently is about 36 megapixels per gfx card if you use Eyefinity 6 card with six 2600x1560 displays - these are approx 6 MP per screen. Although you would be somewhat limited by the amount of vRAM you have at that resolution.

I think max resolution what direct X 11 is capable of handling is 8k x 8k but I'm not too sure about that.
The 30'' behemoth are actually 4M pixels not 6, the best you can get right now from a single GPU is 24M pixels on a 5870 Eyefinity 6, for 33M pixels you would need 2 Eyrefinity cards using most of the outputs into a merger, either built in the TV or outside with a specifically built built cable capable of pushing that resolution * refresh. It's actually possible with NVidia also if you have a quad SLI (8*4M = 32M).

The problem with a solution like merging 2560x1600, is the aspect ratio of the composite picture. The simplest merging would likely be equivalent to modifying to aspect ratio to 16:5. A more complex merging could allow for fractions of the correct picture to be outputed by a particular port without being a 16:10 picture.
post #26 of 42
Quote:
Originally Posted by wedge View Post
Everyone can forget about trying to drive that many pixels (on a single screen) with any currently existing technology. The problem is not rendering power, it's the transport.
HDMI and DVI don't support resolutions anywhere near that high.

Even current DisplayPort/Thunderbolt implementations won't go so high as that. For example, current Thunderbolt spec is around 10 Gbit/s for the display interface at best can do 2560×1600@60 Hz. DisplayPort will be about the same. At least DisplayPort/Thunderbolt is scale-able. There is no theoretical limit, it is only limited by the amount of available bandwidth. So they will be able to do it in the future, but you're going to have to upgrade.
Well, simple math off the top of my head with windows calc open.

7680 × 4320 = 33,177,600

each pixel would be 24 bits I guess? 8 Red, 8 Green, 8 Blue
33,177,600 X 24 = 796,262,400

Presuming you demand a refresh rate of 60
796,262,400 X 60 = 47,775,744,000

47.8 Gigabit/s would be needed at the absolute least.

Thunderbolt has five wires in a copper environment:
1 management, 1 wire pair for In, 1 wire pair for out

Presuming that you have no protocol overhead (CRC check and whatnot) and no compression, then that wire pair would have to be capable of sending signals at 47.8 GHZ (Might be totally bogus here)

Thunderbolt is spec'ed at 40 gigabit/s I think now from a quick look at Wikipedia. I am sure that once they go optical instead of copper it can rise much more. But yeah, I am rather sure that VGA and DVI can't do anything near such a resolution. Specifically because in DVI you have that pixel clock going way way above what it was intended to.

HDMI, same thing (HDMI is basically DVI and audio in one cable).
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post #27 of 42
http://en.wikipedia.org/wiki/Super_Hi-Vision

UHDTV's main tentative specifications:[3]

Number of pixels: 7,680 × 4,320
Aspect ratio: 16:9
Viewing distance: 0.75H
Viewing angle: 100°
Colorimetry: under discussion
Frame rate: 120Hz progressive
Bit depth: 12
Audio system: 22.2ch
Sampling rate: 48kHz, 96kHz
Bit length: 16, 20, 24
Pre-emphasis less
Number of channels: 24
Upper layer: 9ch
Middle layer: 10ch
Lower layer: 3ch
LFE: 2ch

Quote:
On December 31, 2006, NHK demonstrated a live relay of their annual Kōhaku Uta Gassen over IP from Tokyo to a 450 inch (11.4 m) screen in Osaka. Utilizing a codec developed by NHK, the video was compressed from 24 Gbit/s to 180–600 Mbit/s and the audio was compressed from 28 Mbit/s to 7–28 Mbit/s.[8] Uncompressed, a 20 minute broadcast would require roughly 4 TB of storage.
post #28 of 42
Higher resolutions than 1080p on a Computer Monitor. I can see the value, you are sitting 2 ft away from it.

Huge advertising displays or stadium big screens. I can see the value there too.

4K for TV's and home consumer video projectors??? Waste of money. Several group tests showed that in a home environment with the limitations on screen size or seating distance, the group testers could not tell the difference on video material between 720p and 1080p until the screen size got to 130" inches diagonal!! There are very few home cinemas with screens bigger than that. You need a McMansion to accomodate much bigger screens. So what is the point of the 125" screen owner getting a 4K+ res projector when he can't even see the difference between 720p and 1080p at that screen size.
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post #29 of 42
Quote:
Originally Posted by Calibos View Post
Higher resolutions than 1080p on a Computer Monitor. I can see the value, you are sitting 2 ft away from it.

Huge advertising displays or stadium big screens. I can see the value there too.

4K for TV's and home consumer video projectors??? Waste of money. Several group tests showed that in a home environment with the limitations on screen size or seating distance, the group testers could not tell the difference on video material between 720p and 1080p until the screen size got to 130" inches diagonal!! There are very few home cinemas with screens bigger than that. You need a McMansion to accomodate much bigger screens. So what is the point of the 125" screen owner getting a 4K+ res projector when he can't even see the difference between 720p and 1080p at that screen size.
Big deal, most people can't even tell the difference between 192 Kbps mp3 and FLAC, or even upscaled SD to HD.

There will always be a market for consumers who want quality, as as long as companies force the masses to upgrade to newer equipment and media with higher quality, bad for them, but good for us, who care.
post #30 of 42
Well ~35 Megapixels is the equivelant of 35mm film. This is ~33MP. The new Nikon D800 is rumored to have 36MP and be able to shoot 4fps , so the technology is getting there, but still a ways off. The big problem, however, will be making this marketable. When it came to paying more for an HDTV over an SDTV, most people could see a clear difference between the two. When marketing an HDTV vs an UHDTV, the differences will be much more subtle unless being watched on movie theater screens up close. I think this is going to end up like 3D is now: an included feature without much content available that very few people would purchase otherwise.
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