21st September 2018

cnet
16

Is a 4k HDMI cable necessary?

Most mid- and high-end TVs are now Ultra HD resolution, with many also supporting HDR. Not surprisingly, cable manufacturers are jumping at the chance to sell new and more expensive "4K" HDMI cables. But guess what -- you probably don't need 4K HDMI cables, because your current ones can likely do 4K just fine.

Is HDMI 1.4 OK for 4k?

HDMI 1.4 supported 4K resolutions, yes, but only at 24 or 30 frames per second. That works fine for movies, but isn't useful for gaming and many TV broadcasts, which require 50 or 60 fps. Also HDMI 1.4 limited 4K Ultra HD content to 8-bit color, though it is capable of 10 or 12-bit color.

Can HDMI 1.4 do 4k 60hz?

An HDMI Cable, that is tested against the version 1.4 High Speed testing specification (10.2Gbps), will support 4K content @ 30Hz . However, 4K support beyond 50Hz (typically at 60Hz in advanced 4K UHD TVs) can only be supported using an 18Gbps capable HDMI cable (or a v2.0 HDMI).
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