AMD’s next-gen GPUs might embrace DisplayPort 2.0 for 8K HDR gaming

32
AMD Radeon RX 6000

(Picture credit score: AMD)

There’s motive to consider AMD would possibly assist the up to date DisplayPort 2.0 specification with its next-generation graphics playing cards based mostly on RDNA 3. If that involves go, it might pave the way in which for uncompressed 8K gaming in HDR, although we’re getting a bit forward of ourselves.

What’s at play listed below are half a dozen new patches to AMD’s open supply unified graphics driver for Linux (AMDGPU). The newest patches (through Phoronix) come from AMD, they usually add assist for the DisplayPort 2.0 protocol.

The Video Electronics Requirements Affiliation (VESA) truly introduced the DisplayPort 2.0 specification slightly over two years in the past, after which adopted that up final 12 months by including an Alternate Mode (or Alt Mode) normal to the combo to offer “seamless interoperability with the brand new USB4 specs printed by the USB Implementers Discussion board (USB-IF).”

Alt Mode primarily permits the entire options of DisplayPort 2.0 by way of a USB Kind-C connector, to separate the bandwidth between video and information, if desired. And it’s the bandwidth acquire that may be a massive deal right here.

DisplayPort 2.0 can ship a most payload of as much as 77.37 gigabits per second throughout 4 lanes (as much as 19.34Gbps per lane), versus 48Gbps for HDMI 2.1. With out introducing compression, that is sufficient to feed as much as a 10K decision show at 60Hz, or an 8K show at 60Hz with full-color 30 bpp 4:4:4 HDR.

Introducing what’s known as Show Stream Compression (DSC) permits even larger resolutions and refresh fee combos—there’s sufficient bandwidth to drive a 16K show (15360×8460) at 60Hz, additionally with full-color 30 bpp 4:4:4 HDR.

Each the monitor and graphics card have to assist DisplayPort 2.0 with a purpose to faucet into all this bandwidth. At current, neither exist within the shopper house. It appears like that might change subsequent 12 months, although.

Again in January, VESA advised our pals at Tom’s {Hardware} that the pandemic delayed the timeline for getting DisplayPort 2.0 merchandise into the wild.

“What’s sort of created a delay is the Covid-19 state of affairs,” defined Craig Wiley, a consultant for VESA. “What usually occurs is that corporations get collectively and check {hardware} amongst themselves to take a look at interoperability between a PC and a show. As a matter of truth, VESA has check occasions we name PlugTests, usually two or three a 12 months. However we had none in 2020. This has triggered a delay in debugging and growing.”

On the time, Wiley stated he expects DisplayPort 2.0 merchandise would arrive someday within the second half of this 12 months. If that’s the case, it nearly undoubtedly means we’re taking a look at DisplayPort 2.0 displays arriving first, since we’re not conscious of any main GPU launches scheduled for this 12 months.

Trying forward, AMD’s next-gen GPUs might assist DisplayPort 2.0, and we would not be stunned if Nvidia embraced the usual subsequent 12 months as properly. In fact, the opposite aspect of the equation is delivering sufficient GPU horsepower to drive ultra-high decision gaming.

We have solely just lately gotten to the purpose the place comfortably gaming at 4K is possible, although it nonetheless requires high-end {hardware} and/or upsampling routines like Nvidia’s DLSS 2.0 and AMD’s FidelityFX Tremendous Decision (Intel may even implement some sort of supersampling method with its upcoming Alchemist GPUs).

So whereas DisplayPort 2.0 will present one other path to 8K gaming, it stays to be seen if subsequent 12 months’s GPUs will truly be as much as the duty.

Paul Lilly

Paul has been enjoying PC video games and raking his knuckles on pc {hardware} because the Commodore 64. He doesn’t have any tattoos, however thinks it will be cool to get one which reads LOAD”*”,8,1. In his off time, he rides bikes and wrestles alligators (solely a type of is true).