hardware info command
 

Is procinfo the only command that will give me detailed info about my hardware?

Open a term window, and enter the command 'hwinfo'. If you want a printable file, modify the foregoing command to read 'hwinfo | tee hwinfo.txt'. It will leave a file named hwinfo.txt in whatever directory you're in when you run the command.

You can also try:
for info about your PCI devices