1250w is typically the highest wattage for microwaves. 1250w microwaves typically have very large capacities, (around 2 cu. ft.). These include both countertop and built-in models. 1250w microwaves are usually priced between $100 and $300, which is the medium price range for microwaves. Users are pleased with their performance and find them to be much faster at cooking food. Users do find, however, that they are less reliable than other models and have lower value. Panasonic offers the most 1250w microwave models and sweeps the charts for the best models with this power level.