AMD has published a guide outlining how to use Microsoft Olive for Stable Diffusion to get up to a 9.9x improvement in performance. But is that enough to catch up to NVIDIA?

AMD has published a guide outlining how to use Microsoft Olive for Stable Diffusion to get up to a 9.9x improvement in performance. But is that enough to catch up to NVIDIA?
NVIDIA has released a TensorRT extension for Stable Diffusion using Automatic 1111, promising significant performance gains. But does it work as advertised?