The Samsung 990 EVO Plus 2TB and the Western Digital WD Black SN850X 1TB with Heatsink reach a stalemate in this comparison, as both components secure an equal number of specification victories. The most significant advantage for the Samsung 990 EVO Plus 2TB is its capacity, which is 100% better than the alternative. Conversely, the primary strength of the Western Digital WD Black SN850X 1TB with Heatsink is its DRAM cache, which is also 100% better than its competitor.

Users who prioritize maximum storage space for large libraries or extensive file collections should choose the Samsung 990 EVO Plus 2TB for its superior capacity. Those who require the specific performance benefits associated with a DRAM cache should opt for the Western Digital WD Black SN850X 1TB with Heatsink. Selecting between these two drives depends entirely on whether your primary requirement is doubling your available storage volume or utilizing the integrated DRAM cache.