What are these things going to cost? I hope not the same as a mac equivalent or as much as a dgx. Geekbench cpu bench leaks indicate they aren’t as good as m3

What are these things going to cost? I hope not the same as a mac equivalent or as much as a dgx. Geekbench cpu bench leaks indicate they aren’t as good as m3 at single core even. Will they support booting into a Linux installer?