The Samsung 9100 Pro 1TB is the objective winner of this comparison, securing more individual specification victories than its competitor. While the Samsung 9100 Pro 1TB holds the lead in the majority of categories, its most impactful advantage is its MSRP, which is 38% better than that of the Lexar NM1090 Pro 2TB. This makes the Samsung drive the more cost-effective option for users prioritizing initial affordability across the measured specifications.

Users who prioritize long-term reliability and heavy write workloads should choose the Lexar NM1090 Pro 2TB, as it offers a 300% better endurance rating in terms of total bytes written. Conversely, the Samsung 9100 Pro 1TB is the ideal choice for budget-conscious buyers who prefer a more economical entry point. Selecting between these two drives depends entirely on whether your primary requirement is superior write longevity or a lower initial purchase cost.