DisplayPort 1.3 Finally Unveiled, Offers Bandwidth of 32.4 Gbps and support for 4K at 60fps, along with 5K, 8K!
by Stephan Jukic – September 16th, 2014
The development of 4K monitors is only just now leaving the starting line of its existence and seeing some real traction but the Video Electronics Standards Association (VESA) is already on the move with the development of DisplayPort 1.3 for making 4K far more usable on PCs.
The new DisplayPort standard, which will eventually replace version 1.2, is going to offer a whopping 32.4 Gbps of single link bandwidth and even if you allow for bandwidth overhead (friction), it will still give users a very massive 25.92 Gbps.
Most importantly, this massive connectivity power will be more than enough for transmitting 4K at a very smooth (for video) 60 frames per second and it will also be capable of handling both 5k and even 8K video (whenever it comes out and computers can actually handle it) at much lower frame rates.
The overall capabilities of the new DisplayPort 1.3 standard are specifically designed so that it can support dual 4K monitors on a single DP 1.3 connection (at 30fps each), One 8K monitor and a single 4K monitor can be supported at full 60fps with simultaneous capacity for full-speed USB 3.0.
This represents a massive but progressive improvement from the first generation of DisplayPort, which came out in 2008 and was able to give users 10.8 Gbps of broadband connectivity. Afterwards, this was followed by DP 1.2 with its 21.6 Gbps and now finally, we’ve arrived at 1.3 whose 32.4 Gbps are finally catching up with the growing needs of the Ultra high definition displays that are becoming more pervasive on the worldwide PC display and TV markets.
Furthermore, it’s theoretically supposed to be the case that DP 1.3 also offers much better support for high color applications at high resolutions. However, this would not be a standard operating function and getting a conventional desktop PC to handle 10bit or higher color modes would also require a whole bunch of specialized video card and software support upgrades.
In essence, this kind of color feature would for now probably be only worth the hassle to professionals who really need some seriously detailed video editing capacity on their home computers.
Furthermore, despite DisplayPort 1.3’s ability to bring 4K video to the PC screen at 60fps, don’t get too excited just yet. Even if the DP bandwidth is there on your machine, unless it has the video and graphics card capacity as well as processing power necessary to handle fast action 4K video rendering, you simply won’t enjoy any 4K games you buy unless your entire computer undergoes some serious upgrades.
DisplayPort 1.3 is also being pushed as possible standard solution for the use of 5K video resolution (51220 x 2880 pixels) in the very latest display monitors and the PCs they connect to, but given the existing problems with adopting 4K screens already described above, standardization of 5K display is still a year or two away.
There’s also the problem of GPU support for DisplayPort 1.3. So far, HDMI 2.0 has already been in use for a year and even now neither Nvidia or AMD GPUs offer support for it, so when DP 1.3 is going to become a priority still remains to be seen.
Nonetheless, these technological lag times notwithstanding, the new DP standard is not only an excellent innovation for the near future of 4K PC display, it’s also a virtually guaranteed replacement for its own predecessor, DP 1.2.
Story by 4k.com