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Old 01-09-2019, 03:06 PM   #1
caphair
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Default What makes high speed hdmi cables different in construction?

Everywhere I look for this answer I just keep running into the same thing about whether you can use standard hdmi cables with 4K TVs or not.

What I know:
Standard hdmi cables support up to 1080i and could probably handle more
High speed hdmi cables support up to 1080p

But how do they differ to have different standards? Are the pinouts different or is it merely the construction internally? ie thicker cables to support more bandwidth?
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Old 01-09-2019, 06:42 PM   #2
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Default Re: What makes high speed hdmi cables different in construction?

i think they have more parallel channels in use - not actually faster.
http://pinouts.ru/Video/hdmi_pinout.shtml
look at references to "type-b" ?
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Old 01-09-2019, 08:49 PM   #3
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Default Re: What makes high speed hdmi cables different in construction?

https://www.cnet.com/news/4k-hdmi-cables-are-nonsense/
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Old 01-12-2019, 12:47 PM   #4
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Default Re: What makes high speed hdmi cables different in construction?

Read same article but it doesn’t say what makes the high speed cables different than the standard ones that might have issues with 4K content. Curious about the construction internally
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Old 01-12-2019, 02:01 PM   #5
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Default Re: What makes high speed hdmi cables different in construction?

look at the link, do the 4k ones have the same number of pins?
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Old 01-12-2019, 03:08 PM   #6
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Default Re: What makes high speed hdmi cables different in construction?

https://www.hdmi.org/learningcenter/faq.aspx#48
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Old 01-12-2019, 03:20 PM   #7
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Default Re: What makes high speed hdmi cables different in construction?

Quote:
Originally Posted by stj View Post
look at the link, do the 4k ones have the same number of pins?
In that link is type B the “high speed” cables used for 4K or another type? If so it looks to have more pins than the standard cable. Guess that would be the difference?
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Old 01-13-2019, 02:43 PM   #8
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Default Re: What makes high speed hdmi cables different in construction?

It's the same as a CAT5 vs CAT5e vs CAT6 vs CAT6A ethernet cables.
They are tested at higher frequencies, and to achieve those they are built better with each revision.
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Old 01-13-2019, 02:51 PM   #9
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Default Re: What makes high speed hdmi cables different in construction?

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Originally Posted by Per Hansson View Post
It's the same as a CAT5 vs CAT5e vs CAT6 vs CAT6A ethernet cables.
They are tested at higher frequencies, and to achieve those they are built better with each revision.
But how are they built better? Thicker wires than previous models or?
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Old 01-13-2019, 02:55 PM   #10
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Default Re: What makes high speed hdmi cables different in construction?

you dont need thickness, it's not current-drive.
shielding from external noise and crosstalk is the main difference-maker.

just like 13W3 is better than most modern "digital" crap.
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