The Samsung 870 EVO 1TB and the Samsung 990 EVO Plus 1TB result in an objective tie across the evaluated specifications. While both drives offer distinct technical strengths, the most impactful advantage for the Samsung 870 EVO 1TB is its inclusion of a DRAM cache, which is 100% better than the alternative. Conversely, the Samsung 990 EVO Plus 1TB provides a significant performance lead in sequential read speeds, which are 1195% better than those of its counterpart.

Users who prioritize the stability and sustained performance benefits provided by a DRAM cache should select the Samsung 870 EVO 1TB for their storage needs. Alternatively, those who require the fastest possible sequential read speeds for data-intensive tasks should choose the Samsung 990 EVO Plus 1TB. Each drive serves a specific functional requirement, allowing buyers to align their choice with either the architectural advantage of the former or the raw throughput capability of the latter.