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Choose an SSD in this order: confirm your computer supports the drive’s form factor and interface, select capacity for your current files and expected growth, then compare workload-relevant performance, endurance, warranty, and total cost. NVMe is generally the faster option when your system supports it; SATA remains a sensible replacement for systems that require SATA. An M.2 drive is not necessarily NVMe.
1. Check compatibility before comparing SSDs
Start with the exact computer model’s manual or manufacturer specifications. Confirm the supported drive form factor, interface and protocol, physical length, and any bay or slot requirements. A drive that fits physically may still use the wrong connection type.
M.2 describes a form factor, not a protocol
M.2 SSDs can use SATA or PCIe/NVMe. SATA-IO describes M.2 as supporting different connection types, and Solidigm likewise distinguishes M.2 SATA from M.2 PCIe/NVMe drives. Check the manual for both the protocol the system supports and the M.2 length it accepts; do not assume that an M.2 slot supports NVMe. SATA-IO’s M.2 overview explains the form factor’s connection options.
2. Decide between NVMe and SATA
NVMe is a protocol commonly used over PCIe in consumer SSDs. It is designed for high-speed data transfer using parallel, low-latency paths. SATA is a separate interface and protocol; SATA-IO lists its current transfer rate as 6 Gb/s and says there are no plans to extend bandwidth beyond that rate. SATA-IO’s FAQ provides that rate context.
#1 Best Overall
- MEET THE NEXT GEN: Consider this a cheat code; Our Samsung 990 PRO Gen4 SSD helps you reach near max performance with lightning-fast speeds; Whether you’re a hardcore gamer or a tech guru, you’ll get power efficiency built for the final boss
- REACH THE NEXT LEVEL: Gen4 steps up with faster transfer speeds and high-performance bandwidth; With a more than 55% improvement in random performance compared to 980 PRO, it’s here for heavy computing and faster loading
- THE FASTEST SSD FROM THE WORLD'S FLASH MEMORY BRAND: The speed you need for any occasion; With read and write speeds up to 7450/6900 MB/s you’ll reach near max performance of PCIe 4.0 powering through for any use
- PLAY WITHOUT LIMITS: Give yourself some space with storage capacities from 1TB to 4TB; Sync all your saves and reign supreme in gaming, video editing, data analysis and more
- IT’S A POWER MOVE: Save the power for your performance; Get power efficiency all while experiencing up to 50% improved performance per watt over the 980 PRO; It makes every move more effective with less consumption
If your computer supports NVMe and your workload can benefit from it, an NVMe SSD is the performance-oriented choice. If the system is SATA-only, a compatible SATA SSD is the appropriate replacement. The interface alone cannot guarantee that every task will feel faster: applications and system limits matter too.
3. Choose capacity for your files and growth
Estimate the space used by your operating system, applications, games, active projects, and other files. Add room for expected growth, and account for whether you routinely move older material to external or cloud storage. Manufacturer guidance from Solidigm offers these dated examples—not universal minimums—for matching capacity to a workload:
Rank #2
- Ideal for high speed, low power storage
- Gen 4x4 NVMe PCle performance
- Up to 6,000MB/s read, 4,000MB/s write
- Includes Acronis cloning software
- 5-year limited warranty
| Workload example | Solidigm capacity guidance |
|---|---|
| Small business | 256 GB or more; 512 GB suggested to leave room for growth |
| Content creation | 1 TB or more; 2 TB may suit projects and backup images |
| Gaming | 1 TB or more as a starting point for the operating system and a range of games |
| Student work | 256 GB or more for smaller-file needs; 1 TB or more may be needed for science or engineering files |
These examples come from Solidigm’s 2022 storage guide, which frames them as workload guidance rather than fixed requirements. Your existing library, budget, storage habits, and likely growth should determine the final size. Solidigm’s SSD guide explains its capacity examples and workload distinctions.
4. Compare performance that matches your work
Sequential read and write performance describes transfers involving larger files, such as moving a large video. Random performance relates to smaller files stored in scattered locations, a pattern found in mixed everyday activity. Peak sequential figures alone are not a complete measure of how responsive a drive will feel.
Rank #3
- SPEED UP PROJECTS. Launch creator applications fast with uncompromising PCIe 4.0 read speeds up to 7,100MB/s,[2] (1TB and 2TB[1] models) and write speeds up to 6,700MB/s[2] (1TB[1]-4TB[1] models).
- CREATE AND STORE MORE. Make more room for your 4K videos and high-resolution images with capacities from 500GB[1] up to 4TB[1] on M.2 2280 built with our trusted 8th generation SANDISK BiCS QLC 3D CBA NAND.
- IT GOES WHERE YOU GO. With an all-new power efficient design, your drive delivers high performance with low power, giving you more time to be productive while on the go.
- UNCOMPROMISED RELIABILITY. With up to 1,200 TBW[3] (4TB[1] model) endurance rating, your drive is designed for creators.
- KEEP YOUR DRIVE UPDATED. Monitor your SSD’s performance and check for updates with the downloadable SANDISK Dashboard application.[5]
Manufacturers commonly produce specification figures with synthetic workloads, which may not reflect your applications. When comparing specific drives, look for independent tests that resemble your actual work, and avoid paying extra for throughput your computer or workload cannot use. Solidigm discusses these performance categories and their limits in its technical guide.
5. Understand TBW and the warranty
TBW means terabytes written. It is a rating for the amount of data specified to be written over an SSD’s rated life—not a countdown to immediate failure once that figure is reached. Compare the TBW rating with the warranty terms for the exact model and region, since warranties can impose both a time limit and a write limit.
Rank #4
- HUGE SPEED BOOST: Get random read/write speeds that are 40%/55% faster than 980 PRO; Experience up to 1400K/1550K IOPS, while sequential read/write speeds up to 7,450/6,900 MB/s reach near the max performance of PCIe 4.0*
- BREAKTHROUGH POWER EFFICIENCY: Use less power and get more performance; Enjoy up to 50% improved performance per watt over 980 PRO, plus optimal power efficiency with max PCIe 4.0 performance**
- SMART THERMAL CONTROL: Samsung's own nickel-coated controller delivers effective thermal control; With its slim size, 990 PRO is a perfect fit for desktops and laptops that meet the PCI-SIG D8 standard***
- THE CHAMPION MAKER: Up to 65% improvement in random performance enables faster loads for an ultimate gaming experience on PS5 and DirectStorage PC games****
- SAMSUNG MAGICIAN SOFTWARE: Get the most out of your SSD with Samsung Magician's advanced yet intuitive optimization tools; Monitor drive health, protect valuable data, and receive important updates for your 990 PRO
For context, a Solidigm technical guide published approximately in 2023 gives the 1 TB 670p as an example rated at 370 TBW, describing that as well over 200 GB written daily for five years. The same guide gives its 2 TB 670p example as 740 TBW with a five-year limited warranty. Those figures are specific to those products and that guide, not a current model recommendation. Solidigm’s guide provides the examples.
For browsing, school, office work, and gaming, Solidigm says typical consumer applications do not reach SSD endurance thresholds, so capacity, compatibility, cost, and warranty may be more useful priorities than chasing the highest TBW. If you regularly write unusually large volumes—such as recording or editing substantial video projects—compare TBW more closely. As one product-specific example, Crucial describes its warranty as three or five years, or until the maximum TBW is written, whichever comes first. Check the current datasheet and warranty for the particular drive and region. Crucial’s warranty information sets out its terms.
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- This product has been replaced by our latest generation. Please search for the SANDISK Optimus GX 7100 NVMe SSD
- HIGH-OCTANE GAMING. Experience speeds up to 7,250MB/s read and 6,900MB/s write (1-2TB models), with up to 35% faster performance than previous generation.
- PURPOSE-BUILT. Designed for serious on-the-go gamers, with a PCIe Gen4 interface and SANDISK’s next generation TLC 3D NAND.
- MORE TIME TO CLEAR THAT CHECKPOINT. Built with laptops and handheld gaming devices in mind, with up to 100% more power efficiency over the previous generation.
- DO MORE WITH DASHBOARD. Ensure your drive is optimized for prime performance with the downloadable WD_BLACK Dashboard (Windows only).
6. Compare candidate drives on the same basis
Once you know what your system supports, compare compatible options using the specifications that affect your decision. The sources here do not establish live prices or a current ranking of retail models, so check current product datasheets, prices, and comparable independent testing before choosing a specific drive.
Quick Recap
- Compatibility: Supported interface and protocol, drive length or 2.5-inch bay, and system-specific requirements.
- Capacity: Current data plus space for expected growth.
- Workload performance: Sequential figures for large-file transfers and random figures for mixed small-file work; use relevant independent tests.
- Endurance and warranty: TBW rating and warranty duration and conditions for the exact model.
- Total cost: Price for the capacity and performance your system can actually use.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
