The Gen5 Speed Surge: SanDisk’s WD_BLACK SN8100 SSD Arrives, Doubling Down on Performance
The landscape of PC storage is once again shifting gears with SanDisk’s introduction of their WD_BLACK SN8100 NVMe SSD, a drive built on the cutting-edge PCIe Gen 5.0 interface. This new flagship client SSD promises a significant leap in performance, reaching sequential read speeds of up to 14,900 MB/s, and positions itself as a key player for high-performance users in gaming, content creation, and even artificial intelligence.
As the demands of modern applications continue to escalate – from graphically intensive games to high-resolution video and complex AI workloads – the need for faster storage solutions becomes paramount. The WD_BLACK SN8100 steps into this arena, offering a notable performance increase over the previous generation of PCIe 4.0 SSDs. As we explored in our review of the Corsair MP700 Pro Gen5 SSD, the potential of this new interface is substantial.
The key differentiator here is the raw speed. PCIe Gen 5.0 effectively doubles the bandwidth compared to Gen 4.0, which typically sees high-end SSDs achieving read speeds around 7,000 MB/s. The WD_BLACK SN8100’s claimed 14,900 MB/s read speed represents a tangible step forward, potentially leading to significantly reduced loading times in games, faster rendering in creative applications, and quicker processing of large datasets in AI tasks.

Beyond just outright speed, SanDisk also emphasizes the power efficiency of the WD_BLACK SN8100, stating that it offers over 100% more efficiency compared to their high-performance PCIe 4.0 drives. In the realm of high-speed components, power consumption and thermal management are critical factors. Improved efficiency can lead to lower operating temperatures and potentially simplify cooling requirements within a system.
The launch is supported by endorsements from AMD and Intel, highlighting the synergy between this new generation of SSDs and their latest processors. AMD’s Joe Macri points out the 2x performance capability of PCIe 5.0, while Intel’s Todd Lewellen notes the potential for these SSDs to accelerate various demanding tasks.
Technically, the WD_BLACK SN8100 utilizes SanDisk’s BiCS8 TLC 3D CBA NAND technology, which underpins both its performance and endurance. The drive offers up to 2,400 TBW (Terabytes Written) on the 4TB model, indicating a robust lifespan even under heavy workloads. Capacities range up to 8TB, catering to users with extensive storage needs.
For users prioritizing thermal management, SanDisk is also offering an optional version with an integrated, low-profile passive heatsink. This aluminum design aims to provide effective cooling without the need for additional power or active cooling solutions. Select models with the heatsink will also feature customizable RGB LED lighting for aesthetic customization.
The WD_BLACK SN8100 is now available in 1TB, 2TB, and 4TB capacities, with an 8TB version expected later this year. The heatsink-equipped models will also become available in the fall.
The arrival of the SanDisk WD_BLACK SN8100 underscores the ongoing evolution of SSD technology. The significant speed increase offered by PCIe Gen 5.0 has the potential to noticeably improve the performance of high-end PCs across various demanding applications. As this new generation of SSDs becomes more readily available, it will be interesting to see how it impacts the overall computing experience and whether the increased speed justifies the potential price premium for early adopters. We’ll be keeping a close eye on its performance and value proposition as it hits the market.
How does this revised version and the title options sound? I aimed for a more neutral, informative tone while still highlighting the key advancements and their implications.
Important Note on Motherboard Compatibility: To fully leverage the extreme speeds of the WD_BLACK SN8100 Gen5 SSD, users will need a motherboard equipped with PCIe 5.0 M.2 slots. Currently, these are primarily found on newer high-end and enthusiast-grade motherboards from both Intel (typically Z790 and upcoming Z890 chipsets, as well as some B760 and B860 models) and AMD (X670E, B650E, and newer X870E/B850 chipsets) platforms. While Gen5 SSDs are backward compatible with PCIe 4.0 and even 3.0 slots, their performance will be limited by the lower bandwidth of the older interfaces. Therefore, to experience the advertised speeds of the SN8100, ensure your motherboard specifications explicitly list PCIe 5.0 M.2 support. As the Gen5 ecosystem matures, we expect to see broader availability of compatible motherboards across different price points.