Having backed various Kickstarters for years - I know exactly how Kickstarter works thanks
I have been burned on a number of projects, and I have had refunds on a number of projects. So I have no qualms about asking for a refund on this one. Playtonic already mentioned refunds. If I have no option but to get a refund, I will be defo asking for one.
As I said my PC uses a core m (no fan required) chip which uses onboard graphics, specifically Intel Graphics HD 5300 - which isn't brilliant, but much better than your average intel onboard chip. It plays the dolphin emulator on gamecube games okay. But I think this will push it beyond it's limits. As I say if I could try the toybox demo then it might give me an idea if I'll be going the PC or refund route