We have assessed both models, namely the original model for Gaussian chains and the modified one for Langevin chains, through implicit-solvent coarse-grained simulations in a wide range of microgel concentrations, ionization degrees and salt concentrations. The simulations consisted of a single diamond-lattice microgel in a simulation box whose size was determined by the suspension concentration. The microgel was constructed using Kremer-Grest bead-spring model for the polymer and restrictive primitive model for the electrostatic interactions. Its time evolution was computed using MD with Langevin thermostat. By varying different system parameters, we have observed that both models perform with same accuracy when describ- ing swelling for low ionization degrees, dilute microgel concentrations and low salt concentrations. For middle and high ionization degrees and high microgel concentrations, utilization of Langevin model remarkably improves swelling predictions.