G71 is the Playstation 3 RSX chip
 

NVIDIA CALLS its 90 nanometre graphic core of Playstation 3, RSX. This graphic chip is set to work at 550MHz and Nvidia can guarantee that a million chips will work at this speed as it's not that challenging at this process level. Nvidia can obviously make G70 work fine at 550MHz but it can not ship millions of those chips, more likely tens of thousands.

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