VESA released the DisplayPort 2.1 specification today. Typically when an industry group announces a new standard, it takes months or even years for products that support the specifications to be available to consumers. But DisplayPort 2.1 products are already available; In fact, you may already have some. VESA also announced today that any product that already achieved DisplayPort 2.0 certification prior to today’s announcement is now DisplayPort 2.1 certified as well.
“VESA works closely with member companies to ensure that DisplayPort 2.0-enabled products will in fact meet the newest and most demanding DisplayPort 2.1 specifications,” the VESA announcement, which also makes DisplayHDR, AdaptiveSync/MediaSync, Clear MR, and Monitor-mounting specifications, said.
“Due to this effort, all previously certified DisplayPort 2.0 products including those that support UHBR (Ultra Bit Rate)—whether GPUs, docking station chips, standard benchmark chips, or PHY repeater chips, such as reset devices time, or DP40/DP80 cables… (including both passive and active and using full-size DisplayPort, Mini DisplayPort, or USB Type-C connectors)—have already been certified to the more stringent DisplayPort 2.1 specification,” VESA said.
Just like that, DisplayPort 2.0 products have been greatly elevated. However, there aren’t many DisplayPort 2.0 products to talk about right now. DisplayPort 2.0 products were initially expected in 2019, but due to the COVID-19 pandemic affecting testing capabilities, they did not begin to become available until this year.
AMD Ryzen 6000 is DisplayPort 2.0 certified, as do some MediaTek and RealTek chips, DisplayPort cables, and docks, but that’s about it. We don’t know which DisplayPort 2.0 displays are readily available for purchase in the United States. Intel Arc graphics cards, including the Intel Arc A770 and A750, support DisplayPort 2.0, but Nvidia’s latest GPUs, the RTX 4090 and 4080, and AMD’s latest cards, the Radeon RX 6000 series, do not.
DisplayPort 2.1 vs. DisplayPort 2.0
This leads us to the obvious question: What is the difference between DisplayPort 2.0 and DisplayPort 2.1?
The new DisplayPort 2.1 confirms use of the same physical layer (PHY) specification as USB4. According to VESA, this change will create a more efficient DisplayPort tunneling over the latest generation of USB-C. As USB-C becomes more ubiquitous, it makes sense that DisplayPort plays well with the connector.
“Achieving greater alignment between DisplayPort and USB on a shared PHY has been a particularly important effort within VESA given the significant overlap in use-case models between DisplayPort and USB4 systems,” said Alan Kobayashi, VESA Board Chairman and Head of the DisplayPort Task Group. a permit.
Furthermore, DisplayPort 2.1 introduces an updated bandwidth management feature that VESA claims will allow DisplayPort tunneling over USB4 to coexist with other I/O traffic “more efficiently” than before.
The next release of DisplayPort also requires support for the VESA Display Stream Compression (DSC) codec and board reboot to reduce the amount of bandwidth required to transmit DisplayPort tunnel packets.
Finally, the DisplayPort 2.1 specification provides more stringent requirements for DisplayPort cables, including miniature cables. DisplayPort 2.1 cables operating at up to 40 Gbps, which VESA describes for DP40 cables, are specified to support lengths “exceeding” 6.6 feet (2 m) while maintaining performance.
Today, VESA announced that DisplayPort 2.1 cables, operating at a maximum capacity of 80 Gbps, are designed to operate at full performance over distances “exceeding” 3.3 feet (1 m).
As many have likely noted, DisplayPort 2.1 does not increase the maximum throughput over DisplayPort 2.0 and will not bring more advanced capabilities around things like maximum resolution and refresh rate. VESA has discussed using DisplayPort 2.0 with displays with up to 16K resolutions (15,360 x 8640 pixels), including 60Hz with HDR and DSC. DisplayPort 2.0 has also been linked to fast, high-resolution displays, such as 4K and 240Hz non-compression displays.
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