It's reasonable estimation based on known drivetrain loss of a 5.7 Hemi Wrangler, comparing dyno charts to crank hp ratings. Again, read all the things I already stated about this being a best estimate with the available data, to be used for comparing general trends and relative differences. More specifically, for comparing large relative differences. Any area where the differences are very small could be well withing a margin of error of the assumptions.

The data I have so far is enough to see that the 6.4 Hemi will clearly destroy the superchargers throughout the RPM range, will destroy the turbo at low RPMs, but the turbo will likely have some level of advantage in the upper RPM range.

I'll gladly update everything as soon as someone produces an actual dyno chart of a 6.4 Hemi Wrangler. The amount of drivetrain loss becomes irrelevant then, because we'll have an actual measured torque curve at the wheels.