Do you understand how a turbo system works? Boost is regulated by a waste gate and a boost controller. It can be dialed in where you want it, pressure, rpms etc. 7.5 psi is 7.5 psi no matter where is comes from, turbo or supercharger.
I can continue with cylinder pressures, intake temperatures, and more if you would like. I’ve had em all over the years, turbos, rear mount turbo, one of the first supercharged srt8 grand Cherokees, 19 Z06 factory supercharged