While a technically correct answer, I will add it depends on what hardware you had for WF4.
If you had 32-bit OS, 4GB memory and a marginal graphics card with 512MB/1GB, Creo 3 will not run to your satisfaction.
IF you had a 64-bit OS, 16+GB memory and a high end Nvidia graphics card with 3/4GB, Creo 3 will only seem a little bit slower, if at all.
"Wildfires are dangerous, hard to control, and economically catastrophic."
Ben Loosli