genuine question, no snark intended - could other graphics folks enlighten me as to why NVIDIA Nsight requires a Turing-class card or later for Vulkan tracing? like, does it require actual hardware that Pascal lacks or is it a goofy software thing

genuine question, no snark intended - could other graphics folks enlighten me as to why NVIDIA Nsight requires a Turing-class card or later for Vulkan tracing? like, does it require actual hardware that Pascal lacks or is it a goofy software thing
It's hard to tell without insider information but looking elsewhere, AMD's profiler supports hardware about as old as Pascal and maybe a little earlier(?), so the precedent was definitely there. I would expect NVIDIA cards to have had proper profiling support too because it would have been useful when doing internal reviews.