https://www.techradar.com/news/nvidia-geforce-rtx-2080-ti-launch-has-been-delayed-by-a-week

Those keenly awaiting the arrival of the fastest graphics card in the initial GeForce RTX 20 line-up – the 2080 Ti model – will be a tad disappointed to learn that Nvidia has put the launch of this flagship GPU back by a week.

Previously, we were expecting both the RTX 2080 and the RTX 2080 Ti to arrive on September 20, but now we’ve heard direct from Nvidia that only the former will be on sale in three days’ time.