The Samsung 990 EVO Plus 2TB and the Western Digital WD Black SN850X 1TB result in an objective tie across the evaluated technical specifications. While both drives offer distinct strengths, the Samsung 990 EVO Plus 2TB provides the most impactful advantage with its capacity, which is 100% better than the alternative. Conversely, the Western Digital WD Black SN850X 1TB holds a 100% advantage in its inclusion of a DRAM cache, balancing the comparison between these two storage options.

Users who prioritize maximum storage space for large libraries or extensive file collections should select the Samsung 990 EVO Plus 2TB. This drive is best suited for those needing the highest capacity available in this comparison. Alternatively, users who value the presence of a DRAM cache for their specific storage architecture should choose the Western Digital WD Black SN850X 1TB. This component is the appropriate choice for those who prioritize that specific hardware feature over total capacity.