The Samsung 990 Pro 2TB with Heatsink is the objective winner of this comparison, securing victories in five out of seven measured specifications. Its most significant advantage over the Western Digital WD Blue SN580 1TB is its storage capacity, which is 100% greater. By offering double the space for files and applications, the Samsung 990 Pro 2TB with Heatsink provides a substantial hardware lead that outweighs the performance of the alternative in most technical categories.

Users who prioritize maximum storage space and high-end hardware specifications should choose the Samsung 990 Pro 2TB with Heatsink for their build. Conversely, the Western Digital WD Blue SN580 1TB is the better option for budget-conscious consumers, as it holds a 75% advantage in MSRP. Selecting between these two components depends entirely on whether the user values the doubled capacity of the Samsung drive or the lower cost of the Western Digital model.