NVIDIA has released a TensorRT extension for Stable Diffusion using Automatic 1111, promising significant performance gains. But does it work as advertised?

NVIDIA has released a TensorRT extension for Stable Diffusion using Automatic 1111, promising significant performance gains. But does it work as advertised?
In DaVinci Resolve 18.6, Blackmagic is claiming up to a 4x improvement in Neural Engine performance for AMD GPUs, and a 2x improvement for NVIDIA. Is this a true claim, or a matter of cherry-picked results that won’t impact most users?
Installing add-in cards—like capture cards—can limit PCI-e bandwidth to the GPU. Does the reduction of PCI-e bandwidth harm performance in content-creation?
Stable Diffusion is seeing more use for professional content creation work. How do NVIDIA GeForce and AMD Radeon cards compare in this workflow?
The NVIDIA GeForce RTX 4070 and 4060 Ti (8GB) are the most recent additions to NVIDIAs consumer family of GPUs on their Ada Lovelace Architecture. How do they compare for content creation against their previous generation counterparts?
With the RTX 4070 Ti joining the RTX 4080 and 4090, NVIDIA has now completed the launch of the initial trio of their GeForce RTX 40 series of GPUs. How do these cards compare for various content creation workflows versus the previous generation RTX cards, and their competition from AMD?
The RTX 4070 Ti has now joined the RTX 4080 and 4090, completing NVIDIA’s launch of the initial trio of their GeForce RTX 40 Series of GPUs. How do these cards compare in V-Ray GPU rendering versus the previous generation RTX cards?
The RTX 4070 Ti has now joined the RTX 4080 and 4090, completing NVIDIA’s launch of the initial trio of their GeForce RTX 40 Series of GPUs. How do these cards compare in Octane versus the previous generation RTX cards?
The RTX 4070 Ti has now joined the RTX 4080 and 4090, completing NVIDIA’s launch of the initial trio of their GeForce RTX 40 Series of GPUs. How do these cards compare in Redshift GPU rendering versus the previous generation RTX cards?
The RTX 4070 Ti has now joined the RTX 4080 and 4090, completing NVIDIA’s launch of the initial trio of their GeForce RTX 40 Series of GPUs. How do these cards compare in Blender for GPU rendering versus the previous generation RTX cards?