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HDMI 2.1 Is Here With 10K and Dynamic HDR Support (engadget.com)

Swapna Krishna reports via Engadget: Back in January, the HDMI Forum unveiled its new specifications for the HDMI connector, called HDMI 2.1. Now, that HDMI specification is available to all HDMI 2.0 adopters. It's backwards compatible with all previous HDMI specifications. The focus of HDMI 2.1 is on higher video bandwidth; it supports 48 GB per second with a new backwards-compatible ultra high speed HDMI cable. It also supports faster refresh rates for high video resolution -- 60 Hz for 8K and 120 Hz for 4K. The standard also supports Dynamic HDR and resolutions up to 10K for commercial and specialty use. This new version of the HDMI specification also introduces an enhanced refresh rate that gamers will appreciate. VRR, or Variable Refresh Rate, reduces, or in some cases eliminates, lag for smoother gameplay, while Quick Frame Transport (QFT) reduces latency. Quick Media Switching, or QMS, reduces the amount of blank-screen wait time while switching media. HDMI 2.1 also includes Auto Low Latency Mode (ALLM), which automatically sets the ideal latency for the smoothest viewing experience.

5 of 176 comments (clear)

  1. Re:Slashdot censorship by TheRealMindChild · · Score: 1, Informative

    That happens when you get a post downvoted a significant amount. It has *always* been that way.

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    "When life gives you lemons, don't make lemonade. Make life take the lemons back!" -- Cave Johnson
  2. gigaBITS by v1 · · Score: 2, Informative

    48 GB per second

    RTFA please before you post about it. gigaBITS, with a small "b". There's an 8 (or 9) fold difference between "Gb" and "GB". If you can't remember what the abbreviation stands for, quit using it and just spell it out properly.

    (from TFA: "A bigger pipe (48 gigabits per second) allows more information for higher resolutions, ")

    Pisses me off to no end when broadband providers get it wrong in their ads. "can I get that in writing?" (long hold) "actually sir what we meant to say was..."

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    I work for the Department of Redundancy Department.
  3. Gold plating costs by sjbe · · Score: 4, Informative

    Gold plating on cable connectors isn't all that expensive even with the current cost of gold

    Disclosure. I am the general manager of a company that manufactures custom wire harnesses for my day job. I buy terminals and connectors daily.

    First a bit of pedantry. Connectors are assemblies typically consisting of a housing, some sort of contact and sometimes some locks or seals. Gold plating goes on the contact portion of the assembly, typically a terminal or insulation displacement contact. So saying "gold plated connector" is a bit of a non-sequitur although I understand what you mean.

    When you are talking about gold plating a contact the price difference between a gold plated version and a tin or bronze or copper version typically is close to an order of magnitude. If I use a contact that would cost $0.01 in a tin version, the gold plate version will typically cost $0.07-0.10 each. Basically move the decimal point. Now this might be a relatively small cost in the overall cost of the cable assembly but it definitely isn't cheap on a component cost basis.

    99.99% of the time that gold plated contacts are specified they are a complete waste of money that provides zero marginal utility to the customer. There are applications where gold is the proper material but these applications are uncommon. The vast majority of the time gold is used it is purely for marketing value to unaware consumers. It works fine but its an unnecessary extra cost most of the time.

  4. it's frame rate, not refresh rate by nester · · Score: 4, Informative

    The frame rate the cable is capable of supporting has nothing to do with display refresh rate. Example: LCD's of recent years refresh at 120hz, using 24 and 30hz source frame rates.

  5. Re:10k? by Misagon · · Score: 4, Informative

    10K is not 16:9 but an ultra-wide variant of Ultra HD. 10240 * 4320.

    There is no such thing as 16K, yet.
    And if someone tells you they have 16K then they probably have only four times Ultra HD ... which is 15K ! 4 * 3840 = 15 * 1024.

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    "We mustn't be caught by surprise by our own advancing technology" -- Aldous Huxley