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. While the Seagate FireCuda 530 1TB holds a lead in one category, the Samsung 9100 Pro 4TB dominates the majority of the technical metrics evaluated, establishing itself as the superior option for users prioritizing high-volume data storage.

Users who require extensive space for large libraries or professional workloads should choose the Samsung 9100 Pro 4TB to leverage its massive capacity advantage. Conversely, the Seagate FireCuda 530 1TB is the better selection for budget-conscious buyers, as it offers a 79% advantage in MSRP. Selecting between these two drives depends entirely on whether your primary requirement is the maximum storage volume provided by the Samsung or the cost efficiency offered by the Seagate.