According to VideoCardz NVIDIA has moved their NDA date on reviews for their RTX 2080 graphics cards. Apparently there are difficulties in review websites securing samples, delays in shipment, and even unavailable driver versions to allow to review the cards properly.
If you remember the original NDA date for reviews was September 17th, but it appears it will be pushed back to September 19th, which is the same NDA date that was set for the RTX 2080 Ti.
VideoCardz has also said that “only a handful” of reviewers have received their cards. With the date moved back it leaves reviewers with two massive card launches on a single date.