In power amplifier linear methods investigations, performance comparisons are frequently used to assess a new approach’s superiority over current solutions. This methodology makes logic, but it doesn’t consider the degree to which the performance has gone from ideal performance, which makes it difficult to determine whether or not more improvement is even feasible. This study provides closed-form formulas for the Performance metrics Bounds in an effort to close this gap. For a typical communication system, this study offers the closed-form normalized mean square error and achievable data rate bounds. The bounds on the performance measures are derived by considering an ideal linearization scenario. Additionally, we model the analog-to-digital conversion at the receiver-side using an additive quantization noise model. The analytical expressions are verified using numerical simulations.