The SoC powering the PlayStation 5 Pro is likely to be built on TMSC's N4P process node, according to rumors circulating online.
Speaking on Twitter today, Kepler, a well-known AMD leaker, commented on the yet-to-be-revealed new console from Sony, saying that the console's chips won't be built on a 3nm process node but likely on the N4P process node, which is a 4nm process node. According to the leaker, there isn't much difference with the N3E 3nm process in terms of power and performance, so going with a 4nm process node isn't going to impact the console's power in any significant way.
It's not 3nm tho
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