The Samsung 9100 Pro 4TB is the objective winner of this comparison, securing more individual specification victories than its counterpart. While both drives share several identical technical attributes, the larger model provides a decisive advantage in storage space. Specifically, the Samsung 9100 Pro 4TB offers a 100% increase in capacity compared to the smaller version, making it the superior choice for users who prioritize maximum data density and long-term storage overhead.

Users who require the most expansive storage footprint should select the Samsung 9100 Pro 4TB to take advantage of its doubled capacity. Conversely, the Samsung 9100 Pro 2TB is the better option for budget-conscious buyers, as it holds a 48% advantage in MSRP. Choosing the smaller drive allows for significant cost savings while maintaining the same core performance specifications found in the higher-capacity model, provided the lower storage limit meets your specific requirements.