Am I the only old SOB who hates uefi with a passion... wish we had a classic bios mode for mobos. I can only imagine the problems uefi will do for gpus...
16-bit firmware based on early 1980 technology or current millennium 64-bit firmware?
Firmware that has been a hack job to boot from 2 TB or larger drives or firmware that can boot from zettabyte size drives?
Firmware that has a hard coded menu or firmware that can boot into a common shell. (Some boards don't support UEFI Shell, avoid them)
I'll take UEFI with compatibility support mode (CSM) turned off.