The Samsung 9100 Pro 4TB is the objective winner of this comparison, securing victory in four out of six measured specifications. Its most significant advantage is its sequential read speed, which outperforms the Samsung 870 EVO 1TB by 2543 percent. While the latter component remains competitive in specific areas, the substantial lead in read performance establishes the former as the superior option for users prioritizing raw data throughput and high-capacity storage solutions.

Choose the Samsung 9100 Pro 4TB if your primary requirement is maximum sequential read performance and large storage volume. Conversely, the Samsung 870 EVO 1TB is the better selection for budget-conscious buyers, as it holds an 85 percent advantage in MSRP. Select the former for high-performance tasks where speed is critical, or opt for the latter if your priority is minimizing initial expenditure while maintaining a reliable storage foundation.