I just looked up the specs on the things, and from what I saw, the CPU memory is 4GB? We were trying to use Creo 2 on desktops with that much memory and they would frequently crash the program. Also, would the graphics on the thing be up to the task?
I haven't tried it personally, but we have one user that runs Creo on a Surface Pro and says that it works fine. No large assemblies, but some fairly complex ISDX surface models. He even runs Simulate on it.
Last year I ran OCUS benchmark on a Surface Pro 3. Like Kenneth said, that was limited to 4 Gb, though I think the SP4 can go to 8Gb. Graphics score was definitely it's downfall but CPU and Disk scores were competitive with an HP Z420. couldn't hold a candle to the Zbook though. I'll have to try to get a hold of the SP4.