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To answer the call of 8K and higher resolutions, VESA has begun work on a new version of DisplayPort that is expected to double current speeds. Being that the current technology (High Bit Rate 3) offers “32.4 Gbps of raw bandwidth in a 4-lane configuration,” it’s presumed that the next version will provide “64.8 Gbps or better of bandwidth.”
As a side benefit of a higher speed signaling standard, this will allow device vendors to improve the amount of bandwidth available via USB-C ports that offer DisplayPort Alt Mode. Currently USB-C can carry from 1 to 4 lanes of DisplayPort, with the most common configuration being 2 lanes of DP to leave a spare pair for USB 3.x data.
As a side benefit of a higher speed signaling standard, this will allow device vendors to improve the amount of bandwidth available via USB-C ports that offer DisplayPort Alt Mode. Currently USB-C can carry from 1 to 4 lanes of DisplayPort, with the most common configuration being 2 lanes of DP to leave a spare pair for USB 3.x data.