PM991a NVMe Samsung 512GB
User Benchmarks
| Model | Type | Score | Seq. Read MB | Seq. Write MB | Read 4k64QD | Write 4k64QD | Read Access msek. | Write Access msek. |
| PM991a NVMe Samsung 512GB | 512 | 4430 | 1839 | 1717 | 0.00 | 0.00 |
The measurement of the PM991a NVMe Samsung 512GB was carried out on Windows. Similar read and write speeds could certainly be achieved with the PM991a NVMe Samsung 512GB under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the PM991a NVMe Samsung 512GB should be used.
The Samsung PM991a NVMe SSD is a high-performance storage solution designed primarily for OEM (Original Equipment Manufacturer) use in laptops and ultrabooks. Here's a comprehensive look at its features, specifications, and benefits:
Key Features of the Samsung PM991a NVMe SSD
1. High Performance:
- Interface: NVMe (Non-Volatile Memory Express) with a PCIe Gen3 x4 lane interface.
- Speed: Delivers faster read and write speeds compared to SATA-based SSDs, enhancing system performance and responsiveness.
2. Capacity:
- The PM991a is available in capacities up to 512GB, making it suitable for a range of storage needs from basic use to more demanding applications like gaming and professional software.
3. Form Factor:
- M.2 2280: The drive uses the M.2 form factor, which is compact and ideal for thin and light devices. The "2280" denotes the dimensions: 22mm width and 80mm length.
4. Advanced NAND Technology:
- Utilizes Samsung's V-NAND technology for higher density, performance, and reliability.
5. Power Efficiency:
- Designed to consume less power, extending battery life in laptops and ultrabooks.
6. Reliability and Durability:
- Offers excellent durability with a high TBW (Terabytes Written) rating, which ensures a long lifespan even under heavy workloads.
7. Compatibility:
- Widely compatible with modern motherboards and systems supporting NVMe M.2 slots.
Specifications of the Samsung PM991a 512GB NVMe SSD
- Model: PM991a
- Capacity: 512GB
- Interface: PCIe Gen3 x4, NVMe 1.3
- Form Factor: M.2 2280
- NAND Flash: Samsung V-NAND
- Sequential Read Speed: Up to 3100 MB/s
- Sequential Write Speed: Up to 2000 MB/s
- Random Read Speed (4KB, QD32): Up to 290,000 IOPS
- Random Write Speed (4KB, QD32): Up to 230,000 IOPS
- Endurance: Typically rated for several hundred TBW (exact number may vary by manufacturer and model)
- Power Consumption: Lower power consumption compared to SATA SSDs, especially in idle and active states.
Applications and Use Cases
1. Laptops and Ultrabooks:
- Ideal for use in thin and light laptops due to its compact M.2 form factor and power efficiency.
- Provides significant performance improvements over traditional hard drives and even SATA SSDs.
2. Desktops and Workstations:
- Can be used in desktops for users looking for a balance between performance and capacity.
3. Gaming:
- Offers fast load times and smooth gameplay for gaming enthusiasts.
4. Professional Use:
- Suitable for tasks requiring fast read and write operations, such as video editing, software development, and data analysis.
Comparison with Other SSDs
When comparing the PM991a with other SSDs, consider the following aspects:
- Performance: NVMe SSDs like the PM991a generally outperform SATA SSDs in terms of read/write speeds and IOPS.
- Form Factor: The M.2 form factor is preferable for modern, slim devices over 2.5-inch SSDs.
- Cost: OEM drives like the PM991a may be more cost-effective than retail models but may come without additional features like bundled software.
Conclusion
The Samsung PM991a NVMe SSD is a robust choice for users looking to upgrade their storage solution with a focus on performance, reliability, and power efficiency. It is especially suitable for modern laptops and ultrabooks, providing a significant performance boost over older storage technologies.
PM991a NVMe Samsung 512GB and the compatible operating systems
Windows Server 2025, 2022, 2019, 2016, ... or 2008 and higher
Windows 12, 11, 10 or Windows 7 and higher
Linux (various distributions)
macOS (from version 10.6)
Please note that the exact functions and areas of application may vary depending on the firmware version and configuration of PM991a NVMe Samsung 512GB.
The PM991a NVMe Samsung 512GB is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the PM991a NVMe Samsung 512GB regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.