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| Brand | Samsung |
|---|---|
| Model | 990 PRO |
| Capacity | 1 TB |
| Usage Class | Client / Consumer |
| Host Interface | PCIe 4.0 x4 |
|---|---|
| Total Interface Bandwidth | 16 Gb/s |
| Form Factor | M.2 (2280) |
|---|
| NAND Flash | Samsung V-NAND 3-bit TLC |
|---|---|
| Drive Writes Per Day | 0.33 |
| Total Bytes Written | 600 TBW |
| Sequential Read | 7450 MB/s |
|---|---|
| Sequential Write | 6900 MB/s |
| Random Read IOPS | 1200000 |
| Random Write IOPS | 1550000 |
| Average Latency | 60 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-V9S1T0B/AM |
|---|
The Samsung 990 PRO 1TB (MZ-V9P1T0BW) is the clear performance step-up from MZ-V9S1T0B/AM, delivering up to 49% higher sequential read, 64% higher sequential write, 76% higher random read, and 94% higher random write performance while maintaining the same 600 TBW endurance. With PCIe 4.0 x4, Samsung V-NAND 3-bit TLC, and up to 7,450/6,900 MB/s plus 1.2M/1.55M IOPS, it is the stronger choice for latency-sensitive gaming, high-concurrency content creation, and workstation scratch workloads that need top-tier client NVMe throughput without sacrificing durability.
With an endurance rating of 600 TBW and 0.33 DWPD, this SSD can sustain about 164 GB of host writes per day over its warranty period, which is more than sufficient for typical OS, office, and general business application workloads. In practical terms, for use as a system drive or in read-heavy client environments, this level of endurance supports many years of stable operation without endurance-related concern. The specified UBER of 1.0E-15 means the drive is designed for a very low rate of unrecoverable bit errors, supporting dependable data reads in normal operating conditions, while the 1.5 million-hour MTBF further reflects solid overall reliability expectations. This model does not include Power Loss Protection (PLP), so while it is well suited for standard PC and non-critical business deployments, applications with frequent sudden power-loss risk or write-in-flight protection requirements should use a drive with PLP.
1. The PCIe 4.0 x4 interface, paired with top-tier sequential read bandwidth, helps data-intensive platforms ingest large datasets and boot analytics workloads with minimal wait time.
2. Its exceptionally strong random read capability enables high-concurrency databases and virtualized environments to serve far more small-block requests without becoming a storage bottleneck.
3. A 0.33 DWPD endurance profile makes it a solid fit for read-centric enterprise workloads such as content delivery, reporting clusters, and scale-out application servers.
4. Samsung V-NAND 3-bit TLC balances cost efficiency, capacity density, and dependable performance, making it well suited for mainstream enterprise deployments that need predictable TCO.
5. With typical latency in the tens of microseconds, the drive supports faster transaction response and more consistent QoS for latency-sensitive services.
Lower-capacity reference: 500 GB (MPN: MZ-V9P500BW) Higher-capacity reference: 2 TB (MPN: MZ-V9P2T0BW) Capacity positioning analysis: In the 990 PRO family, the 1 TB model sits at the sweet spot. Compared with the 500 GB version, it gives much better headroom for OS images, application stacks, hot datasets, and write growth, reducing the need for early expansion. Compared with the 2 TB version, it preserves nearly the same class of sequential and random performance while keeping acquisition cost and fleet-wide budget under tighter control. It is best suited for small to mid-size virtualization clusters, such as hosting boot and utility volumes for about 30 to 50 lightweight virtual machines.
Q: Is MZ-V9P1T0BW suitable for a write-heavy database server?
A: MZ-V9P1T0BW is generally not ideal for write-heavy database servers. With 0.33 DWPD, 600 TBW, TLC NAND, and no PLP, it is better suited for client, mixed-use, or read-focused workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated at 0.33 DWPD, meaning about one-third of its 1 TB capacity can be written daily over the warranty period, equivalent to roughly 333 GB of writes per day.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include power loss protection. PLP is critical in enterprise or transactional environments because it helps prevent in-flight data loss and metadata corruption during unexpected power outages.
Q: What RAID level is recommended for this SSD?
A: For this SSD, RAID 1 or RAID 10 is typically recommended when data protection and performance are important. RAID 0 improves speed but offers no redundancy or fault tolerance.