  In this note we derive $N^3$-behavior at large t' Hooft coupling for the free
energy of 5D maximally supersymmetric Yang-Mills theory on $S^5$. We also
consider a $Z_k$ quiver of this model, as well as a model with $M$
hypermultiplets in the fundamental representation. We compare the results to
the supergravity description and comment on their relation.
