Depending on what "is" is... It's a 32 bit architecture, what do you care if it is implemented with 4 or 16 bit microarchitecture. Some minicomputers were built

Depending on what "is" is... It's a 32 bit architecture, what do you care if it is implemented with 4 or 16 bit microarchitecture. Some minicomputers were built from bitslice (1-bit) parts :)