Wednesday, 9 October 2019

microprocessor - How much is VLIW power- and area-efficient then superscalar anyway?


Most of texts say VLIW, which is lack of hardware to detect hazards and schedule the instructions. But I haven't see any evaluation about how much VLIW can save area(h/w complexity) and power compared to performance-matching superscalar.


When VLIW came out, the advancement of technology node size was slowing down, but not anymore. I want to know it's still valid to say VLIW can be considered to be efficient enough in power/area compared to equivalent superscalar when enough ILP is given.




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