The Samsung 990 Pro 4TB is the objective winner of this comparison, securing victory in five out of seven measured specifications. Its most significant advantage over the Kingston NV3 2TB is its endurance, which is 400% higher. While the Kingston NV3 2TB holds a 77% advantage in MSRP, the Samsung 990 Pro 4TB dominates the technical metrics, making it the superior choice for users prioritizing long-term reliability and high-capacity storage performance.

Users who require maximum endurance for heavy write workloads should choose the Samsung 990 Pro 4TB to ensure longevity. Conversely, the Kingston NV3 2TB is the better option for budget-conscious buyers who prioritize a lower MSRP over the extended endurance and capacity offered by the alternative. Selecting between these two drives depends entirely on whether your primary requirement is minimizing upfront costs or maximizing the total lifespan and storage volume of your system.