Whatever the claims about Fortran, I would say that 3) is definitely not applicable here (two implementations provided, 2) is laughable (some people used to arg

Whatever the claims about Fortran, I would say that 3) is definitely not applicable here (two implementations provided, 2) is laughable (some people used to argue Fortran was the easiest to optimize) and 1) is true, but not in a way that would have a significant impact on this benchmark. Fortran compilers have been optimized over the years pretty extensively, and really of late the only reason to have a Fortran compiler is for efficient numerical computation, so that is something Fortran compiler writers have focused on.