  We verify numerically that in the context of general relativity (GR), flat
models which have the same $\Omega_{\rm m}$ and CMB shift parameter $R$ but
different $H(a)$ and $w(a)$ also have very similar (within less than 8%) growth
of perturbations even though the dark energy density evolution is quite
different. This provides a direct connection between geometrical and dynamical
tests of dark energy and may be used as a cosmological test of general
relativity.
