Each set of electric fields is then compared with those calculated at the DFT level with ONETEP. We find that AMOEBA electric fields show far greater correlation to DFT than those of additive potentials, and with smaller systematic error. Our results highlight the utility of polarizable potentials in biomolecular environments where the accurate reproduction of electrostatics is crucial. If mechanistic insights are desired, recent high-performance software implementations obviate the timescale limitations of standard polarizable simulations to some extent, but cross-validation with experimental data would remain highly desirable to complement the computational predictions.