Nvidia has announced that the financial guidance for the fourth quarter of fiscal year 2019 has been lowered. A forecast revenue figure of US$2.70 billion had previously been given, but this has now been reduced to US$2.20 billion. One of the reasons given for the disappointing update was the apparent sales figures for the RTX series based on Turing microarchitecture, which were weaker than expected.
https://www.notebookcheck.net/Nvidia-financial-guidance-lowered-RTX-GPU-sales-weaker-than-expected.401341.0.html