The Lexar NM1090 Pro 2TB is the objective winner of this comparison, securing victories in five out of seven measured specifications. Its most significant technical advantage is its sequential write performance, which is 160% better than that of the alternative. By outperforming the competitor in the majority of categories, this drive establishes itself as the superior option for users prioritizing raw speed and high-performance data handling capabilities over total storage volume.

Choose the Lexar NM1090 Pro 2TB if your primary requirement is high-speed sequential write performance for demanding tasks. Conversely, select the Western Digital WD Blue SN5000 4TB if your priority is storage space, as it offers a 100% advantage in total capacity. This makes the Western Digital drive the better choice for users who need to store large amounts of data rather than those focused on the specific speed metrics where the Lexar model excels.