The Samsung 990 Pro 2TB is the objective winner of this comparison, securing victory across four of the seven evaluated specifications. Its most significant technical advantage is the inclusion of a DRAM cache, which provides a 100% improvement over the alternative. This hardware feature distinguishes it as the superior option for users prioritizing high-end performance and sustained data management capabilities within their storage configuration.

Choose the Samsung 990 Pro 2TB if your primary requirement is the performance benefit provided by the integrated DRAM cache. Conversely, select the Western Digital WD Blue SN5000 2TB if your priority is the 50% advantage in MSRP. This makes the Western Digital drive the more suitable choice for budget-conscious users who prefer a lower initial cost over the advanced cache architecture found in the Samsung model.