3DMark Time Spy
Rendered at QHD or UHD resolutions and making use of DX12 technologies such as asynchronous compute, explicit multi-adapter and multi-threading, Time Spy is a modern 3DMark benchmark that hints at GPU potential in today's latest games.
Expect all RX 6700 XTs to perform similarly during actual use. 3DMark's synthetic tests put AMD's latest in touch with the GeForce RTX 3060 Ti, and some way behind the RTX 3070 and RX 6800 further up the ladder.
Stability, as you'd expect from a Nitro+ card, is excellent.