Macintosh computer with an Intel x86 or PowerPC G3, G4, or G5 processor 256 MB RAM 200 MB of free hard drive space Minimum Hardware Requirements: CPU: Intel Core i3, i5, or i7 CPU with 2 or more cores, or AMD equivalent. 12 (Sierra) Processor: 1,3 GHz with 2 cores recommended: 2 GHz or more 2 cores or more ARM processors in tablet computers are not supported. hackintosh system requirements The System requirements at the time of the amount of RAM standard with the Macintosh computers were 64 MB, while the Mac OS X 10.