The graphic cards offer faster clocks and memory.
AMD announced Radeon RX 6950 XT, 6750 XT, and 6650 XT – refined versions of existing RX 6900 XT, 6700 XT, and 6600 XT. The new graphics cards introduce faster clocks and memory, albeit just slightly: the "50s" offer a 5-6% bump over their predecessors.
For example, the new RX 6950 XT works at 18Gbps while RX 6900 XT – at 16Gbps. However, the "50" cards have a 20-35W higher TDP.
AMD also compared its graphics cards with NVIDIA's to say that its products have more value for money as they presumably offer better performance for fewer dollars.
The cards were launched on May 10 and should cost $1099 for RX 6950 XT, $549 for 6750 XT, and $399 for 6650 XT.