Although CISC architecture systems have a larger instruction set and access data from MM, perfomance wise CISC systems are behind RISC system. This because of the larger instruction decoding and execution time. MIPS (Millions of Instructions per second) was intially used to compare perfomance systems. And RISC systems outperformed CISC systems because of the simpler instructions. Hence I think RISC systemsare better. But makes the life of an assembly level programmer very difficult :-)
