More than 20 disks.
Hence, the copyfest era -- meetings where people brought machines and blank floppies to spread the gospel.It came on a CD-ROM, whose contents I had to copy into the hard disk and start the installation from there, because IDE CD-ROM drives were mostly unsupported.
My monitor was 1024x768, but X could not do higher than 800x600 with my card.
Nowadays I have Ubuntu on my travel laptop, and still have hardware acceleration issues with its Brazos GPU.