The Crucial MX500 4TB is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most significant advantage is its storage capacity, which is 300% greater than that of the alternative. While the Lexar Professional NM1090 Pro 1TB PCIe Gen5 NVMe M.2 SSD offers a substantial 2400% improvement in sequential read speeds, the overall balance of specifications favors the higher-capacity drive for general utility.

Users who prioritize massive file storage and long-term data retention should choose the Crucial MX500 4TB for its superior capacity. Conversely, those who require the fastest possible sequential read performance for specialized tasks should select the Lexar Professional NM1090 Pro 1TB PCIe Gen5 NVMe M.2 SSD. Your decision should depend on whether your primary requirement is the ability to hold larger volumes of data or the need for significantly faster read operations.