According to a rumor from Tweaktown, AMD is fighting with shortage issues related to their RX Vega graphics cards already before launch. As claimed by an exclusive industry source, AMD might have only 16'000 RX Vega GPUs available at launch, suggesting that there will be a shortage of Vega graphics cards upon release.
Although this rumor comes from an "exclusive industry source", there are no credible leads or facts on this information. However we do know that the HBM2 memory is now also being by NVIDIA on their P100 graphics card and the low volume of RX Vega chips might be linked to the fact that there still isn’t enough HBM2 memory available, which in turn could be causing a shortage.
AMD will reveal more information on Vega-, Navi- and Zen+ architecture on May 16th and the new roadmaps are expected to be released as well. In an AMA (Ask Me Anything) on Reddit AMD already stated they will prolong ZEN architecture with Zen2 and Zen3 as Zen+. The first iteration of these would be Pinacle Ridge and should offer up to 15% IPC improvements.
Source:
Guru3D