VESA today released the DisplayPort 2.1 specification. Typically, when an industry group announces a new standard, it takes months or even years for products supporting the specification to become available to consumers. But DisplayPort 2.1 products are already available; in fact, you may already have one. VESA also said today that any product that was already DisplayPort 2.0 certified prior to today’s announcement is now also DisplayPort 2.1 certified.
“VESA worked closely with member companies to ensure that products supporting DisplayPort 2.0 would actually meet the newer and more demanding DisplayPort 2.1 specification,” reads the announcement from VESA, which also offers DisplayHDR, AdaptiveSync /MediaSync, Clear MR and mounting monitors. specs, says.
“Thanks to this effort, all previously certified DisplayPort 2.0 products, including Ultra-high Bit Rate (UHBR)-enabled products – whether GPUs, docking station chips, scalar monitor chips , repeater PHY chips, such as re-timers or DP40 / DP80 cables (including passive and active connectors and using full size DisplayPort, Mini DisplayPort or USB Type-C connectors) – have already been certified according to the stricter DisplayPort 2.1 specification,” VESA also said.
Just like that, DisplayPort 2.0 products have been augmented. However, there aren’t many DisplayPort 2.0 products to speak of at the moment. DisplayPort 2.0 products were originally expected in 2019 but, due to the COVID-19 pandemic affecting testing capabilities, they only started to become available this year.
AMD Ryzen 6000 is DisplayPort 2.0 certified, as are some MediaTek and RealTek chipsets, DisplayPort cables and docking stations, but that’s about it. We are not aware of any DisplayPort 2.0 monitors readily available for purchase in the United States. Intel’s Arc graphics cards, including the Intel Arc A770 and A750, support DisplayPort 2.0, but not Nvidia’s latest GPUs, the RTX 4090 and 4080, and AMD’s latest cards, the Radeon RX 6000 series .
DisplayPort 2.1 versus DisplayPort 2.0
This brings us to the obvious question: what is the difference between DisplayPort 2.0 and DisplayPort 2.1?
The new DisplayPort 2.1 confirms the use of the same physical layer (PHY) specification as USB4. According to VESA, this change will allow for more efficient DisplayPort tunneling compared to the last generation of USB-C. As USB-C becomes more and more ubiquitous, it makes sense that DisplayPort plays well with the connector.
“Achieving better alignment between DisplayPort and USB on a common PHY has been a particularly important effort within VESA given the significant overlap in use case patterns between the DisplayPort and USB4 ecosystems,” said Alan Kobayashi, President of the VESA Board of Directors and Chair of the DisplayPort Working Group, in a statement.
Additionally, DisplayPort 2.1 brings 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 version of DisplayPort also requires support for VESA’s Display Stream Compression (DSC) codec and Panel Replay to reduce the amount of bandwidth required to transport DisplayPort tunneling packets.
Finally, the DisplayPort 2.1 specification brings more stringent requirements to DisplayPort cables, including Mini. DisplayPort 2.1 cables operating at up to 40 Gbps, which VESA calls DP40 cables, are specified to support lengths “beyond” 6.6 feet (2 m) while maintaining performance.
DisplayPort 2.1 cables operating at the maximum capacity of the 80 Gbps specification, meanwhile, are specified to operate at full performance at distances “beyond” 3.3 feet (1 m), VESA announced today. today.
As many have probably noticed, DisplayPort 2.1 does not increase the maximum throughput over DisplayPort 2.0 and will not bring more advanced features regarding things like maximum resolution and refresh rate. VESA discussed using DisplayPort 2.0 with monitors up to 16K resolution (15360×8640 pixels), including 60Hz with HDR and DSC. DisplayPort 2.0 has also been associated with fast, high-resolution displays, such as 4K, 240Hz monitors that don’t rely on compression.
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