The Lexar NM1090 Pro 2TB is the objective winner of this comparison, securing victories in five out of seven measured specifications. Its most significant advantage is its endurance, which is 300% better than that of the Samsung 990 Pro 1TB. By offering superior durability across its technical profile, the Lexar NM1090 Pro 2TB establishes itself as the more robust storage solution for users prioritizing longevity and high-capacity performance in their system builds.

Users who require maximum endurance for heavy write workloads should choose the Lexar NM1090 Pro 2TB to take advantage of its superior TBW rating. Conversely, the Samsung 990 Pro 1TB is the better option for budget-conscious buyers, as it holds a 58% advantage in MSRP. Selecting between these two drives depends entirely on whether your priority is the long-term reliability of the Lexar drive or the initial cost savings provided by the Samsung alternative.