SanDisk Optimus GX 7100 1TB SSD vs Samsung 990 1TB NVMe SSD

The SanDisk Optimus GX 7100 is the faster drive on paper and the tougher one to wear out, with higher rated read and write speeds and 600 TBW of endurance against 400 TBW. The Samsung 990 is the safer pick if you want hardware encryption and a long track record of Samsung SSD firmware support. Both are PCIe 4.0 x4 M.2 2280 drives, so either fits the same slot and either will feel fast in games and everyday work. Owners rate the SanDisk well, but it has far fewer ratings than Samsung's mainstream drives, so the Samsung has more real-world history behind it.

• Choose the SanDisk Optimus GX 7100 if you want the higher rated speeds and endurance and you mostly game or edit on a laptop or handheld.
• Choose the Samsung 990 if you need built-in 256-bit AES encryption or you prefer a drive with a longer track record.