What simply occurred? A current AMD show engine drivers patch added help for Displayport 2.0’s Ultra High Bit Rate (UHBR) transmission modes. The function will enable a most bandwidth of 80 Gbit/s, which, coupled with DSC, needs to be sufficient for many shows launched within the subsequent few years.
Even although we’re nonetheless a couple of months away from the launch of AMD’s next-gen GPUs, the corporate is tough at work creating the software program that can make these playing cards work correctly.
A current patch confirms that GPUs based mostly on the RDNA3 structure will help DisplayPort 2.0 and may be able to the very best UHBR20 transmission mode. If used with a succesful cable and monitor, that may enable for a most bandwidth of 80 Gbit/s.
Looks like RDNA3 helps the total DisplayPort 2.0 spec (UHBR20) ‘
— Kepler (@Kepler_L2) May 26, 2022
In March, the Video Electronics Standards Association (VESA) began its DP 2.0 certification program. There are already a few cables which are UHBR20 licensed, though they’re restricted to 0.8m. As DP 2.0 leverages the Thunderbolt 3 bodily interface layer, passive cables share the identical size limitations when utilizing the very best switch speeds. This downside will be solved with dearer energetic cabling.
If AMD’s upcoming GPUs help UHBR20, they need to have the ability to output HDR video with a decision of 4K at 240 Hz or 8K at 60Hz with out even utilizing DSC. With DSC, which VESA claims is visually lossless and might compress a knowledge stream by a 3:1 ratio, you might drive an 8K 144Hz HDR display by a single cable.
Of course, there’s additionally the problem of not having any DP 2.0-capable screens. These received delayed a number of occasions, however they’re hopefully going to launch quickly, contemplating we virtually have host units supporting the usual in the marketplace.