99dbb0fb_PU_architecture___Future_Chips__Programmer_Effort
[Power] Low [Performance] High [Examples] Network chips like the Intel IXP are great examples of this. Coding anything complex on these chips is a nightmare, but if something can be mapped onto them successfully, they provide very high performance for low power. Other examples that follow this trends to a lesser extent include the Intel Itanium chip. Itanium is a VLIW (Very Long Instruction Word) machine. It requires programmers to specify instruction scheduling which increases their work. However, Itanium provides means to get higher efficiency at lower programer effort. [Programmer Effort] 
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Three factors that influence CPU architecture | Future Chips
Programmer Effort