Everything that decides whether the Samsung 990 Pro is the right drive: controller, DRAM, NAND, rated endurance, PS5 and laptop fit, and how it compares with the obvious alternatives. Hardware facts are taken from the reviews and datasheets listed at the bottom; capacities and speeds come from our comparison of 60 drives.
Who it’s for: A main drive for a gaming PC or workstation, or a PS5 upgrade (heatsink version): TLC with DRAM, among the fastest Gen 4 drives, and a five-year warranty. Skip it for: Gen 5 systems that need more bandwidth, and buyers who would rather spend the premium on capacity — a DRAM-less TLC drive is close in everyday use.
| Controller | Samsung Pascal (in-house) |
| DRAM cache | Yes — LPDDR4, 1 GB per TB |
| NAND | Samsung V7 176-layer TLC V-NAND |
| Interface | PCIe 4.0 x4, NVMe 2.0, M.2 2280 |
| Heatsink version | Samsung sells a heatsink version (with RGB lighting) at each capacity; at about 8.2 mm thick it fits the PS5 slot. |
| Capacity | Seq. read | Seq. write | Endurance | Warranty |
|---|---|---|---|---|
| 1 TB | 7,450 MB/s | 6,900 MB/s | 600 TBW | 5 yr |
| 2 TB | 7,450 MB/s | 6,900 MB/s | 1,200 TBW | 5 yr |
| 4 TB | 7,450 MB/s | 6,900 MB/s | 2,400 TBW | 5 yr |
Rated endurance is 600 TBW at 1TB, 1,200 TBW at 2TB, 2,400 TBW at 4TB. Speeds are the manufacturer’s sequential ratings.
Every Samsung 990 Pro capacity in our comparison, smallest first.
| $/TB | $/GB | Price | Capacity | Interface | Gen | Read | Write | NAND | Warranty | Cond. | Product |
|---|---|---|---|---|---|---|---|---|---|---|---|
| $299.99 | $0.300 | $299.99 | 1 TB | M.2 NVMe | Gen 4 | 7,450 MB/s | 6,900 MB/s | TLC | 5 yr | New | Samsung 990 Pro 1TB· 3rd-party· ships laterAmazon ↗ |
| $195.00BEST | $0.195 | $389.99 | 2 TB | M.2 NVMe | Gen 4 | 7,450 MB/s | 6,900 MB/s | TLC | 5 yr | New | |
| $200.00 | $0.200 | $799.99 | 4 TB | M.2 NVMe | Gen 4 | 7,450 MB/s | 6,900 MB/s | TLC | 5 yr | New |
Full list of qualifying drives: PS5-compatible SSDs.
WD Black SN850X: its closest rival: Gen 4, TLC, DRAM, same endurance, and also available at 8TB.
| Samsung 990 Pro | WD Black SN850X | |
|---|---|---|
| Interface | PCIe Gen 4 | PCIe Gen 4 |
| Seq. read | 7,450 MB/s | 7,300 MB/s |
| Seq. write | 6,900 MB/s | 6,600 MB/s |
| NAND | TLC | TLC |
| DRAM cache | Yes | Yes |
| Warranty | 5 yr | 5 yr |
Samsung 9100 Pro: Samsung's Gen 5 successor for PCIe 5.0 slots.
| Samsung 990 Pro | Samsung 9100 Pro | |
|---|---|---|
| Interface | PCIe Gen 4 | PCIe Gen 5 |
| Seq. read | 7,450 MB/s | 14,800 MB/s |
| Seq. write | 6,900 MB/s | 13,400 MB/s |
| NAND | TLC | TLC |
| DRAM cache | Yes | Yes |
| Warranty | 5 yr | 5 yr |
We show retail prices only while we can refresh them at least every 24 hours. For market context: TrendForce’s 16 Oct 2026 retail sample runs $133–$250 per TB for mainstream 1–2TB drives, and NAND contract prices are forecast +15 to +20% for 4Q26. Check any listing against that range with the price per TB calculator, and see the SSD price chart for the trend.
Hardware facts on this page come from:
Where reviews disagreed (for example on NAND layer counts or a capacity’s endurance rating) we state only what the sources agree on.