t of faster CPU turnaround. In either case, oversubscription tends to help self-play, where node freshness is not important, but hurts tournament play, where making simulation choices based on data even a little stale because of pipelining can drastically harm tree shape and decision-making. This freshness factor makes CPU performance optimization still vital despite the system seeming GPU-bound. Other architectures are also possible with, for example, parallelism or threading creating ad-hoc batches to be 