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MIPS do not represent a processor's capability

EETimes published an article that discusses the "true meaning" of MIPS (millions of instructions per second) in the context of modern, diverging processor architectures.

With proprietary accelerators and different system on chip architectures, no two processor types are the same. Even assuming the same instruction set architecture (ISA), the on board microarchitectural choices have a huge impact on the execution speed of individual instructions. The same instruction may therefore take different time on different architectures. Application developers can therefore not rely on the MIPS figure alone as an indicator how effective their code runs in different environments, even if the overall system architecture remains identical.
Read the full article at EETimes.