The Samsung 9100 Pro 2TB is the objective winner of this comparison, securing more individual specification victories than its counterpart. Its most significant advantage is a 97% improvement in sequential read performance, which provides a substantial lead in data access capabilities. While both drives share several identical specifications, the superior read speed of the Samsung 9100 Pro 2TB establishes it as the more technically capable storage solution for high-performance tasks.

Users prioritizing maximum data throughput should choose the Samsung 9100 Pro 2TB to leverage its significant sequential read advantage. Conversely, the Samsung 990 Pro 2TB is the better option for budget-conscious buyers, as it offers a 32% advantage in MSRP. Selecting between these two drives depends on whether your primary requirement is the highest possible read performance or a more favorable initial purchase cost.