The ADATA XPG Legend 970 2TB is the objective winner of this comparison, securing victories in five out of seven measured specifications. Its most significant advantage over the competition is its endurance, which is 147% higher in terms of total bytes written. This superior durability rating makes the ADATA XPG Legend 970 2TB the more robust choice for users prioritizing long-term hardware reliability and heavy write-intensive workloads over other considerations.

The Western Digital WD Black SN850X 1TB is the preferred option for budget-conscious buyers, as it holds a 67% advantage in MSRP. Users who prioritize lower initial costs and do not require the higher capacity or extended endurance of the alternative should select the Western Digital WD Black SN850X 1TB. Conversely, those who need maximum storage longevity and capacity should choose the ADATA XPG Legend 970 2TB for their system build.