Sun's IPC vs Sparc speed (does it need memory?)

[john at triton.jpl.nasa.gov]

We have an IPC (16 MIPS, 8 megs, OS 4.1.1) on a net with three Sparc 1's
(11 MIPS, 12 megs, OS 4.1.0). We have noticed that the subjective speed of
the IPC is below the Sparc's (OpenWindows seems sluggish). Do we need more
memory? Could there be any other speedup solutions?

John R Veregge 
john at triton.jpl.nasa.gov