AMD RDNA 3 GPUs Would possibly Assist DisplayPort 2.1 Output
On: October 14, 2022
A tweet by former HardOCP chap and ex-Intel worker, Kyle Benett, possibly the primary trace of AMD’s RDNA 3 GPUs utilizing the DisplayPort 2.1 normal.
It’s uncommon for a brand new product to launch with out assist for newer applied sciences. DisplayPort 2.0 was obtainable beginning in 2019. Integration of the product assist by no means got here to mild, and present and newer NVIDIA GPUs solely assist DisplayPort 1.4a. Intel is the one firm that’s utilizing the present 2.0 normal within the firm’s Arc GPUs.
Kyle Bennet, a Twitter person, posted the tweet beneath yesterday. The picture is from the HardForum web site.
Verification from a number of sources that @Radeon Navi 31 will assist upcoming DisplayPort 2.1 specification. I’m tremendously shocked that @NVIDIAGeForce 4090 solely helps DP 1.4a. Props to @LinusTech for calling out the DP1.4/4090 shortcomings! https://t.co/eW84VicAZr pic.twitter.com/4fmOtcnlth
— Kyle Bennett (@KyleBennett) October 12, 2022
There could possibly be a cause for this resolution by NVIDIA. When the corporate held an official GeForce RTX 40 sequence query and reply session, with the outcomes posted on September twenty first, one of many questions requested of the corporate was, “Why is not DisplayPort 2.0 listed on the spec sheet?” The corporate responded that the “present DisplayPort 1.4 normal already helps 8K at 60Hz. Assist for DisplayPort 2.0 in client gaming shows [is] nonetheless a methods away sooner or later.” It seems NVIDIA doesn’t need to throw warning to the wind in providing the latest specification forward of full integration.
The DisplayPort 2.0 expertise permits for just a few totally different configurations. Whereas it does provide assist as much as 16K resolutions, there’s little or no to no assist for that top of a decision, and most audiences don’t undertake that top of a show decision. Two shows at 8K resolutions utilizing the DP 2.0 spec can provide a 120Hz refresh fee with a display decision of 7680 x 4320. Nevertheless, three 4K shows at 3840 x 2160 will produce a 90Hz refresh fee.
Another excuse that NVIDIA is gradual to undertake the present DisplayPort 2.0 or 2.1 requirements is that the latter is but to be authorized by VESA. VESA handles standardization in the case of interfaces for shows. Moreover, DP 2.1 cables are accessible within the market, which makes this all of the extra complicated, particularly when NVIDIA revealed a number of technological advances in its current keynote final month.
Earlier this 12 months, AMD RDNA 3 GPU and Linux DCN32/321 patches leaked, displaying that the corporate would assist DisplayPort 2.0. However, the corporate additionally doesn’t but assist DisplayPort 2.1 specs however seems to approve it forward of NVIDIA.
There’s little or no official info given concerning the new DisplayPort 2.1 specs. There are rumors that the brand new show specification will provide assist for Extremely-Excessive Bit Price 20 (UHBR), the very best bandwidth per lane you possibly can obtain from DisplayPort specs, equaling 20 GBits per lane. With DP 2.0 providing thrice the bandwidth of DP 1.4, the very best quantity of bandwidth, at the moment, is 80 Gbps, with a knowledge fee of 77.37 Gbps. That may be 4 lanes whole being utilized by DisplayPort 2.0.
Information Sources: VideoCardz, Kyle Bennett (Twitter), HardForum, NVIDIA weblog, NVIDIA AMA Reddit, TFT Central, , ,
