The Samsung 9100 Pro 8TB is the objective winner of this comparison, securing victory 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, the Samsung 9100 Pro 8TB provides a clear technical lead for users prioritizing scale and high-volume storage density over other considerations.

Users who require massive storage space for extensive libraries or professional workloads should select the Samsung 9100 Pro 8TB to leverage its superior capacity. Conversely, those who prioritize a lower initial cost should choose the Samsung 990 Pro 2TB, as it holds an 80% advantage in MSRP. This makes the Samsung 990 Pro 2TB the more suitable option for budget-conscious buyers who do not need the expansive capacity offered by the larger drive.