Figure focuses on performance at 1 bar as a function of T . We can see that GOPAL and TIP4P-FB are nearly tied the lowest for the lowest RMSE in V res , density, isothermal compressibility (κ), volume expansivity α isobaric curves restricted to 1 bar over the 1-100 • temperature range. The remainder of the results follow the same trend as observed in the case of the results over the entire temperature and pressure range. In GOPAL, the error in densities across the entire temperature and especially pressure range have been reduced significantly compared to all other water models. As a result, all properties which are based on the pressure derivatives of Gibbs energy benefit from the boost in accuracy.