The RX 6900 XT is here, and AMD claims that it takes on the NVIDIA GeForce RTX 3090 for just US$999. AMD's most-powered RDNA 2 GPU will debut in December, albeit only as a reference card initially.
https://www.notebookcheck.net/AMD-pitches-the-Radeon-RX-6900-XT-as-an-NVIDIA-GeForce-RTX-3090-beater-for-US-999.499914.0.html