Samsung - 9100 PRO 2TB vs Samsung - 990 PRO 2TB

The 9100 PRO 2TB is the clear pick on raw spec strength, leading by 19.7 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the 9100 PRO 2TB if you care most about sequential read and sequential write. The biggest gaps in its favor are sequential read, sequential write, interface.

The 990 PRO 2TB similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable capacity, endurance (tbw), so those specs don't separate the two — focus on the differences below.

Bottom line: the 9100 PRO 2TB is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.