Official Sony [X9] XBR-55X900A / XBR-65X900A Owner's Thread - Page 436 - AVS | Home Theater Discussions And Reviews
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post #13051 of 13058 Old 05-22-2015, 05:00 PM
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Originally Posted by Geoff D View Post
Did someone just send up the Geoff-signal?

roo, this TV will not accept 4:4:4 4K60p, it's about that simple. The board upgrade doesn't change the HDMI's processing capabilities, it only adds the new HDCP 2.2 copy protection which is essential for playing back commercially available 4K content from the Sony media player and (eventually) UHD Blu-ray. But it will definitely accept 4K50/60p @ 8-bit 4:2:0 on all ports.

As for the chroma subsampling itself, 4:2:0 is just as much a part of the HDMI 2.0 specification as the 4:2:2 and 4:4:4 variants are. Bear in mind that the chroma component of a 4K 4:2:0 signal is technically still at 1080p resolution while the luma is at full 2160p, so it'll hardly look like some crusty old NES game, and the increased temporal resolution (frame rate) of a 4K60p image will go a LONG way to improving the picture too. (Even 1080p60 gaming is mightily impressive to my eyes because of the frame rate.) Will you get the utmost out of your fancy-pants gaming rig? Probably not, but it'll still look damned good.
Geoff, you are a god send! I've been researching this all night and you're bang on the money. 4.2.0 8bit is far from the disaster I was reading about, indeed it's simple high colour bit depth, instead of Deep (10bit) or higher.

Indeed, even some HDMI 2.0 ports on more recent TV's are also constrained to 4.2.0 8bit, quite simply because that is is the colour depth most video content is encoded at (inc Blu-Ray). There I was, assuming I was going to get 16 colours or something - not at all. lol.

These two links I stumbled across, really helped put my mind at rest (and explain the science)... and you post Geoff, sealed the deal! You sir are a legend, as is AJ of course. The forum wouldn't be the same without you both!

I will genuinely sleep easier tonight guys - thanks so much to answering the call!

The rig and I salute you!...

Last edited by s9roo; 05-22-2015 at 05:09 PM.
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post #13052 of 13058 Old 05-23-2015, 05:45 AM
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No worries. And it's worth mentioning that it's quite capable of accepting up to 12-bit 4:4:4 for 4K24 signals too. It won't display such signals at their full whack because the panel is only 10-bit ('only' ) but these sets aren't as gimped as people would have us believe.
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post #13053 of 13058 Old 05-23-2015, 07:01 AM
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Originally Posted by s9roo View Post
The rig and I salute you!...

I dropped £4,300 on the PC rig last night.
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post #13054 of 13058 Old Yesterday, 09:12 PM
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The CX2 Mount Service has finally arrived in AU
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post #13055 of 13058 Unread Today, 03:02 AM
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Netflix 4k

Nvidia has a box that claims to stream Netflix 4K for $200. Is this a real option for us the don't want to spend money of the Sony boxes?

Last edited by Dawgdaes; Today at 03:04 AM. Reason: Added link
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post #13056 of 13058 Unread Today, 03:19 AM
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I am looking for smart 3d tv which one is best sony or samsung?
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Reply LCD Flat Panel Displays

Sony Xbr 65x900a 65 Inch 1080p 120hz 3d Led 4k Ultra Hdtv , Sony Xbr 55x900a 55 Inch 4k Ultra Hd 3d Led Tv
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