What new features and performance claims did Nvidia announce for their RTX 50 series GPUs?

Nvidia unveiled their RTX Blackwell 50 series GPUs with several breakthrough technologies, including DLSS 4.0, DLSS Transformer, and NE Faces. CEO Jensen Huang made the notable claim that the RTX 5070 will deliver RTX 4090-level performance at just $549. However, he indicated this impressive performance leap would be 'impossible without AI,' suggesting AI optimization is key to these advancements. The lineup includes the RTX 5090 and other models that, according to the presentation, offer exciting price points relative to their claimed performance capabilities.