The Samsung 9100 Pro 4TB is the objective winner of this comparison, securing victories in five out of seven measured specifications. Its most significant advantage is its storage capacity, which is 300% greater than that of the alternative. By offering substantially more room for data, this drive provides a clear technical lead in overall utility and scale compared to the smaller capacity offered by the competing model.

Users who prioritize maximum storage space for large libraries or professional workloads should choose the Samsung 9100 Pro 4TB. Conversely, the Seagate FireCuda 530 1TB is the better option for budget-conscious buyers, as it holds a 79% advantage in MSRP. Those who do not require high-capacity storage can leverage this significant cost efficiency to complete their build while maintaining the performance standards associated with this specific drive.