2011年，某人在 reddit上发的帖子，宇航级cpu RAD750, 每颗20万刀。

性能比较感人，相当于2011年手机处理器性能的十分之一。

In reading about the soon to land Mars Science Laboratory I was shocked to find that the processors on board, dual RAD750 CPUs, were capable of only 400 MIPS, which is perhaps 1/10 the processing power of a modern smart phone. The RAD750 processing systems, which are based on older PowerPC spec, can cost over $200,000 each and required years of r&d to develop. My questions are the following:
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