Yes, "hit and miss" is exactly why I posted. One more detail... It will be running the kickstarter version of leadwerks on Linux. So, dual booting. However, the using that version should be able to milk a bit more power out of it.
So yeah, running "at all" is prioraty here. If it runs slowly, that's hardly an issue for now.
I fully agree that tower beats laptop in every way imaginable more than most people can even imagine. However, without going into too much detail, it needs to be a laptop. It's just one of those situations.
Also, not buying the laptop yet. Just getting a sense of the market. The purchase will be made before Christmas.