Recycled asphalt pavement (RAP) has significantly increased the new construction and rehabilitation of bituminous pavements. Performance parameters for bituminous pavement, like rutting and cracking resistance under heavy commercial traffic and environmental conditions, are essential to determine RAP's viability in a hot-bituminous mix. This surge aims to optimize limited natural resources with ecological benefits. The current research examines the impact of a polymer-modified binder (PMB) on the performance characteristics of mixes containing RAP of 20% and 30% proportion. It compares the results with mixes containing virgin bitumen (VG 30). A Marshall mix design was conducted to assess the influence of PMB 70 on RAP mixes, with samples prepared at RAP contents of 0%, 20%, and 30% at Optimum Binder Content (OBC). Tests such as Marshall Retained Stability (MRS), Tensile Strength Ratio (TSR) Test, and Dynamic Creep Test were conducted to evaluate performance parameters. Similarly, the performance parameters were assessed for mixes prepared with VG 30 binder and RAP contents of 0%, 20%, and 30%. Volumetric analysis determined the optimum proportion of virgin bitumen and aggregate. The test results indicated that PMB 70 showed significant improvements, particularly with up to 20% RAP content, while VG 30 demonstrated satisfactory results with up to 30% RAP content. Rusting performance was found acceptable in mixes containing PMB 70 with up to 20% RAP content compared to conventional mixes. In conclusion, it can be inferred that PMB 70 with 20% RAP content would exhibit satisfactory performance.