![]() As you can see below, 5K and 10K video are mathematically and grammatically correct.įor the average person, 8K is massive overkill. We should also point out that like 3860-by-2160-pixel video being marketed as 4K (an aspect ratio of 16:9), 7680-by-4320-pixel video will be marketed as 8K. 8K displays have been announced, but they’re largely for gaming, industrial, and advanced imaging applications. Where will you be able to see that? We’re not altogether sure. Did you know that the 2020 Olympics will be broadcast in 8K? They will. HDMI’s bandwidth also allows much higher video resolutions. HFR in the home is a long ways off, but Hollywood, industrial, and scientific uses are myriad. With HFR, you can see the rain drops in a storm. Why? To reduced the motion blur with fast moving items that is a weakness of slower frame rates. You might remember the first installment of The Hobbit was shown in select locations at 120 frames per second. Where these higher refresh rates will come in handy is with HFR (High Refresh Rate) video. For example, 4K at 240Hz can be used if so desired. Note that these are only common possible resolutions and frame rates. Right-click on this image to open a larger version in a new window or tab. In fact, some of the higher resolution/frame rate combinations you see listed in the chart below can only be realized when DSC is in use. HDMI 2.1 also supports VESA’s Display Stream Compression (DSC) for even greater bandwidth. ![]() You’ll only need a new cable–as in the render above, it will be labeled Ultra High Speed HDMI–if you’re connecting to TV with 4K resolution with a 240Hz refresh rate or a TV with 4K or 8K resolution. That bandwidth bump makes possible all of the larger numbers you’ll see in the rest of this story: 8K and 10K video resolution, 4K resolution with a 240Hz refresh rate, and so on. We’re talking a staggering 48 gigabits per second, compared to the 18Gbps that HDMI 2.0 can handle. Increased bandwidth is the most salient improvement HDMI 2.1 delivers. The good news is that you probably won’t need a new HDMI cable if you’re using a 4K or lower-resolution TV with a 120Hz or lower refresh rate. The new standard won’t impact the average user today or even in the near future, but new hardware coming to market within the next year and into the next decade will deliver better experiences with movies, games, virtual reality, and more. HDMI 2.1 is here, delivering breathtaking bandwidth and enabling a raft of new capabilities.
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