The Lexar NM1090 Pro 2TB is the objective winner of this comparison, securing victories in six out of seven evaluated specifications. Its most significant advantage is its endurance, which is 300% better than that of the alternative. This superior durability rating makes the Lexar NM1090 Pro 2TB the more robust option for long-term data reliability and heavy write-intensive workloads compared to the Silicon Power UD90 1TB.

Users who prioritize longevity and high-capacity storage should choose the Lexar NM1090 Pro 2TB for its substantial endurance lead. Conversely, the Silicon Power UD90 1TB is the better choice for budget-conscious buyers, as it holds an 83% advantage in MSRP. Selecting between these two components depends on whether your primary requirement is the extended write lifespan offered by the Lexar or the lower initial cost provided by the Silicon Power.