Samsung 990 1TB NVMe SSD vs Samsung 9100 Pro Internal SSD

The 9100 Pro is the newer drive and the one to buy if your motherboard has PCIe 5.0: it roughly doubles sequential read speed and adds a heatsink option for sustained loads. The 990 is the safer pick for PCIe 4.0 laptops and older desktops, where the 9100 Pro's extra bandwidth goes unused and it runs hotter. Both are Samsung TLC drives with 5-year warranties and solid owner reports; the 990 has the longer track record.

• Choose the 990 if your system is PCIe 4.0 only, you want a proven drive with a long reliability record, or you are upgrading a laptop where heat and power matter.
• Choose the 9100 Pro if you have a PCIe 5.0 slot and move large files, edit 4K/8K video, or run local AI workloads that benefit from the higher sequential speeds.