The Samsung 9100 Pro 8TB is the objective winner of this comparison, securing victory in three out of five evaluated specifications. Its most significant advantage is its sequential read performance, which is 7900% better than that of the alternative. By outperforming the competition in the majority of categories, this drive establishes itself as the superior option for users prioritizing raw technical capability and high-speed data access over other considerations.

Choose the Samsung 9100 Pro 8TB if your primary requirement is maximum sequential read speed and high-capacity storage. Conversely, the Western Digital WD Red Plus 4TB is the better choice for budget-conscious buyers, as it holds an 88% advantage in MSRP. Select the Western Digital drive if your priority is minimizing initial expenditure rather than achieving the highest possible performance metrics provided by the Samsung unit.