The Samsung 9100 Pro 4TB is the objective winner of this comparison, securing four out of six total spec victories. Its most significant technical advantage is its sequential read speed, which outperforms the Samsung 870 EVO 1TB by 2543%. While the 870 EVO 1TB maintains a lead in MSRP, offering an 85% better value in that specific category, the 9100 Pro 4TB dominates the overall performance metrics across the remaining evaluated fields.

Users prioritizing raw data throughput and maximum storage capacity should choose the Samsung 9100 Pro 4TB for their system. Conversely, the Samsung 870 EVO 1TB is the appropriate selection for budget-conscious buyers who prioritize a lower MSRP over the extreme sequential read speeds offered by the higher-capacity model. Selecting between these two drives depends entirely on whether your primary requirement is high-performance data access or minimizing your initial financial investment.