I make do with 4GB RAM and 1.8GHz CPU. If I need anything that exceeds the capacity of that, be it games or graphics or compilations, I invest in a proper device or service for that. And if you need GBs of RAM for each compilation, you have to fix your build system, switching from detrimental builds to incremental builds. We're talking about a thir-teen-inch laptop here, i.e. sth one can shove in the pocket of some older overcoats.