And I've posted benchmark data to my sbc-reviews repo here: https://github.com/geerlingguy/sbc-reviews/issues/81
Performance-wise it's pretty much the same as the Pi 5 16GB (and can be slightly faster than the regular Pi 500 depending on the task, if it benefits from faster storage or more RAM...)
Since this is the first Pi with built-in NVMe (I'm not counting the Compute Module Developer Kit), I plugged in an eGPU and tested a new 15-line patch for AMD GPU drivers, which seems to support practically all modern AMD graphics cards[1].
[1] https://www.jeffgeerling.com/blog/2025/full-egpu-acceleratio...