The Seagate FireCuda 530 1TB and the Western Digital WD Black SN850X 2TB result in an objective tie across the evaluated specifications. While both drives share equal performance in three categories and split the remaining metrics, they offer distinct primary advantages. The Seagate FireCuda 530 1TB holds a 29% advantage in MSRP, while the Western Digital WD Black SN850X 2TB provides a 100% advantage in total storage capacity.

Choose the Seagate FireCuda 530 1TB if your priority is a lower MSRP, as this represents its most significant benefit over the alternative. Conversely, select the Western Digital WD Black SN850X 2TB if you require double the storage capacity, which stands as its primary advantage. Both components offer identical performance in the majority of measured fields, making the decision dependent entirely on whether you value a lower cost or increased space.