The Samsung 9100 Pro 8TB is the objective winner of this comparison, securing victories in six out of seven evaluated specifications. Its most significant advantage is its storage capacity, which is 300% greater than that of the alternative. By offering substantially more space for data, this drive establishes itself as the superior option for users prioritizing high-density storage solutions over other considerations.

Choose the Samsung 9100 Pro 8TB if you require maximum capacity for extensive file libraries or professional workloads. Conversely, select the Western Digital WD Black SN770 2TB if your primary goal is to minimize your initial investment, as it holds an 88% advantage in MSRP. This makes the latter a more suitable choice for budget-conscious users who do not require the massive storage volume provided by the larger drive.