The Samsung 990 EVO Plus 1TB and the Western Digital WD Black SN770 2TB reach an objective tie, as each component leads in three out of seven measured specifications. The Samsung 990 EVO Plus 1TB provides the most significant performance advantage with a 41% faster sequential read speed. Conversely, the Western Digital WD Black SN770 2TB offers the most substantial utility advantage, delivering a 100% increase in total storage capacity compared to its competitor.

Users prioritizing rapid data access and high-speed sequential read performance should select the Samsung 990 EVO Plus 1TB for their storage needs. Alternatively, those who require maximum space for large libraries or extensive file collections should choose the Western Digital WD Black SN770 2TB. The decision rests entirely on whether the user values the superior read speed of the former or the doubled capacity provided by the latter.