The 4TB Samsung 990 Pro has been discounted to $799.90 at Amazon, down from $1,099.99. That is a 27% saving and works out to about 20 cents per gigabyte, a notable price point given recent storage price inflation driven by AI demand.
The drive remains a strong performer even as PCIe Gen 5 options appear. It delivers sequential reads up to 7,450 MB/s and writes up to 6,900 MB/s, with random reads/writes at 1.6 million and 1.55 million IOPS. Endurance is rated at 2,400 TBW, and the 4TB model uses a single-sided M.2 2280 design with 236-layer TLC V-NAND.
In Tom's Hardware testing, the 990 Pro 4TB posted strong results in latency and sustained write performance, maintaining 6.2 GB/s for 75 seconds before dropping to 1.6 GB/s. It also showed good power efficiency at 421.1 MB/s per watt, trailing only a couple of competitors. The article notes that prices may not return to previous lows, so this discount stands out for anyone needing high-capacity storage now.