The Seagate FireCuda 540 1TB is the objective winner of this comparison, securing victories in five out of seven measured specifications. Its most significant performance advantage is its sequential write speed, which is 138% better than that of the alternative. By outperforming the competition in the majority of technical categories, this drive establishes itself as the superior option for users prioritizing raw hardware capabilities and high-end technical specifications for their storage needs.

Users who require the highest possible sequential write performance should choose the Seagate FireCuda 540 1TB for their system builds. Conversely, the Silicon Power UD90 1TB is the better choice for budget-conscious buyers, as it holds a 70% advantage in MSRP. Selecting between these two components depends entirely on whether the user prioritizes the significant speed benefits offered by the former or the cost-effectiveness provided by the latter.