AMD Radeon RX 9070 XT For $599 & RX 9070 For $549 Launched: RDNA 4 GPU Up To 2.97 GHz, 16 GB Memory, Up To 68% Faster Than 7900 GRE

They do this because they want people getting the more expensive one, better margins.

They will probably do what they did with the 7900xt as it was in a similar situation when compared to the 7900xtx, 6 months or so they will reduce the price