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PS5 HDMI 2.1 bandwidth only 32 gbps!

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18K views 36 replies 15 participants last post by  Dabois09  
#1 ·
As an AV enthusiast I'd say my biggest excitement around next gen centered around HDMI 2.1 and finally being able to have 4k 4:4:4 chroma color space 120hz HDR aka no compromises whatsoever.

However, Sony has seemingly capped the bandwidth of the console itself at 32gbps limiting us to yuv422 color space when using 4K 120hz HDR which is substandard. Unfortunately we don't know if it's a software limitation or a hardware limitation.

It's really unfortunate as we're already missing Dolby Vision support, VRR, ALLM, but if this stands as a hardware limitation I'll personally be very upset as it's the thing I was looking forward to the most.


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#2 ·
Yeah which means no HDR with 4k@120hz and 8k@30hz
3058136
 
#7 ·
$2k to feed scalpers and secure PS5 and X series under Christmas tree, thank you Wuhan:)
 
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#22 ·
It all depends, LG use the remaining bandwidth when they capped it to 40Gbps for video processing on the 2020 models. I can’t think of anything that would need 16 or 8 from 48/40Gbps as far as resources go. I doubt it would be the Tempest 3D audio but who knows.
 
#24 · (Edited)
What I don't get is what is the point of making specs if you don't have to meet them. It seems like since LG did 40GBPS so did MS. Sony says there will be a firmware up date to get to 40GBPS as I believe it will be needed for VRR although there is a lot of conflicting info out there.

MS messed up big time as sony had dev kits to developers a year before launch. Even at E3, they were still using modified PC's with the Xbox one x tools as developers still did not have dev tools for the series x.

Obviously developers focused on the PS5 because they had the proper dev kits and currently almost all of the Xbox series X cross platform enhanced games are just PS5 ports.
die to delayed dev kits.

I guess My biggest question is what's the point in setting specs if you don't have to meet them. Currently the LG, the Xbox series X, and the PS5 don't need HDMI 2.1 specs but are being sold with HDMI 2.1 ports. Is this even legal? I'm sure they both have it buried in the terms of service somewhere but this has nothing to do with which console does better but more about meeting the HDMI 2.1 spec and if it's actually needed. Also, what happens in 3 to 4 years when displays advance to the point where neither console can give up enough bandwidth to support some potential new features? What potential impact could only being able to do 40GBPS 8n the future? I understand if this question can't be answered yet because we really don't know.

Then yesterday digital foundry released another video, specially for Dirt 5 and the internet is already claiming the PS5 the winner for one cross platform game that was a PS5 port to the series x, the devs left it up to the series x hardware to handle the difference which it obviously didn't. I guess it's the 20-year-old AV enthusiast in me that say s none of this is right. Specs need to be met and HDMI 2.1 is the biggest fustercluck I've ever seen in 20 years.

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#26 ·
What I don't get is what is the point of making specs if you don't have to meet them. It seems like since LG did 40GBPS so did MS. Sony says there will be a firmware up date to get to 40GBPS as I believe it will be needed for VRR although there is a lot of conflicting info out there.

MS messed up big time as sony had dev kits to developers a year before launch. Even at E3, they were still using modified PC's with the Xbox one x tools as developers still did not have dev tools for the series x.

Obviously developers focused on the PS5 because they had the proper dev kits and currently almost all of the Xbox series X cross platform enhanced games are just PS5 ports.
die to delayed dev kits.

I guess My biggest question is what's the point in setting specs if you don't have to meet them. Currently the LG, the Xbox series X, and the PS5 don't need HDMI 2.1 specs but are being sold with HDMI 2.1 ports. Is this even legal? I'm sure they both have it buried in the terms of service somewhere but this has nothing to do with which console does better but more about meeting the HDMI 2.1 spec and if it's actually needed. Also, what happens in 3 to 4 years when displays advance to the point where neither console can give up enough bandwidth to support some potential new features? What potential impact could only being able to do 40GBPS 8n the future? I understand if this question can't be answered yet because we really don't know.

Then yesterday digital foundry released another video, specially for Dirt 5 and the internet is already claiming the PS5 the winner for one cross platform game that was a PS5 port to the series x, the devs left it up to the series x hardware to handle the difference which it obviously didn't. I guess it's the 20-year-old AV enthusiast in me that say s none of this is right. Specs need to be met and HDMI 2.1 is the biggest fustercluck I've ever seen in 20 years.

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I don’t get where you think some legal issue is at. TVs on the market are 10bit. You don’t need the full 48Gbps. An HDMI 2.1 is anything after 18Gbps which is the max for HDMI 2.0b. Even with HDMI 2.0b you didn’t get everything it was cspable with all TVs on the market. I had a 2015 Vizio M that had one 2.0b input and couldn’t do 1440p@120. The panel was also 8 bit. This isn’t the case with TVs with 2.1. Questionable about receivers because the 8k models when 12bit displays do come at some point in the future your then limited to 40Gbps.
An LG 2019 48Gbps is not benefiting over a 2020 LG with 40Gbps. They both get the max of 4k@120hz 444 10bit HDR as advertised. No one needs 48 for bragging rights with today’s displays.
 
#30 ·
I've just discovered some kind of bug that results in system level HDR calibration seemingly reseting upon launching a new game. It's painfully obvious in Black Ops Cold War as when it disregards your calibration settings the game has a washed out haze look.

It will persist with this error until you close the app and redo the calibration again. Not sure what triggers it but somethings not right.

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#32 ·
Pretty sure none of you can tell the differences between 422 and 444 output when it all ends up 444/RGB in the chain anyway. Also, 120hz is the biggest sham for consoles, marketing hype, since next gen consoles were always going to target 4K/60 as the standard with locked and stable frames. I mean, if you want last gen graphics and stripped down fidelity just so you can up your score in CoD by 0.1 ratio, then so be it. Also most TVs have other compromises with 120hz.
 
#33 ·
I can definitely tell the difference there's a slight difference in sharpness overall that's not just text related in my experience.

Also 120hz is not a sham - makes a huge difference from a motion perspective as well as input lag. Visually it still looks great?

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