WD_BLACK SN850X 2TB M.2 2280 Game Drive with Heatsink PCIe Gen4 NVMe up to 7300 MB/s

Product Information

The 1TB and 2TB drives have an optional version with RGB lighting plus heatsink to help maintain peak performance through the most intense gaming sessions. (Please choose the heatsink model for this) Game Mode 2.0 serves up even more PC performance-boosting features like load prediction to ready game assets for fast in-game loading. A range of capacities from 1TB to 4TB means you get to keep more of today’s games that can take up 200GB or more of storage. Considering it and its predecessor both employ the very same SanDisk 8-channel controller with the only difference being 256Gbit BiCS 4 vs. 512Gbit BiCS 5, we find this result to be powerful evidence that 512Gbit BiCS 5 flash is indeed faster than 256Gbit BiCS 4, but slightly slower than 176L hynix. PCM10 Storage Tests The SN850X had weak random write performance, though it did display an improvement over its predecessor with a peak of 187K IOPS at a latency of 678.7µs (vs. 173K IOPS and 733.9µs for the SN850).

DirectStorage sure sounds as that there will be some improvement, albeit assuming you aren't running GPU at full load already, as DirectStorage apparently works mainly at the premise of taking some workload from the CPU and giving it to the GPU, such as to decompress files that get loaded in when walking to a new area in an open-world game. And for current-gen gaming, even slower NVMe SSDs sure are plenty fast. Moving onto sequential read 64K, the SN850X performed very well with 5.93GB/s (or 94,512 IOPS) with 337µs latency for second place. Again, this was an improvement over its predecessor, which posted a peak of 5.57GB/s (891K IOPS) at 354 µs. WD improved performance in sequential read workloads, with a maximum of 7.3GBps from 7.0GBps, and sequential writes improved from up to 5.3GBps to 6.6GBps. Performance in random workloads has also improved significantly, up from a maximum of 1M / 720,000 read and write, respectively, to 1.2M / 1.1M. Starting with SQL average latency, the SN850X posted 3ms, which placed it in the upper part of the consumer NVMe SSD leaderboard. The SN850X is competitive with other high-end PCIe 4.0 drives in sequential workloads, but it can’t quite match the SK hynix Platinum P41 in random IOPS. Pricing is a bit stiff, particularly at 4TB. The SN850X will have to impress to justify its MSRP. Game Mode 2.0, Software and AccessoriesThe SN850's Gaming Mode worked by disabling lower power states, ensuring the drive would be more responsive. Game Mode 2.0 works differently with a three-pronged approach: predictive loading, adaptive thermal management, and overhead balancing. Predictive loading is an algorithm designed to detect upcoming low queue depth, sequential workloads - particularly the read workloads prevalent in many games. Adaptive thermal management works to improve average and sustained throughput via smoother throttling. Finally, overhead balancing seeks to improve read latency while gaming through I/O prioritization. While SSD tuning software such as this often doesn’t show any noticeable real-world gains, it does allow users to perform firmware upgrades via the application (among other things), which is more functionality than many other companies provide. You can also see (at a glance) the drive’s overall health, interface speed, temperatures and capacity information. Overall the software is nice to have but won’t deliver “felt” performance to the end user. Warranty and Pricing The SN850X is specced with PCIe Gen4 performance, quoting up to 7.3GB/s read and 6.6GB/s write in sequential transfer speeds for the 2TB and 4TB model. In random 4K performance, the higher-capacity models are expected to reach up to 1.2 million IOPS read and 1.2 million IOPS write. To those that doubt the veracity of our assertion that BiCS 4 performs better than Micron B47R or Samsung V-NAND, we can and have demonstrated this on multiple occasions. Whenever everything is equivalent except the flash (same controller, same DRAM), good ole 96 Layer BiCS 4 arrayed SSDs easily outperform 176 Layer B47R arrayed SSDs. A good example is the M10P vs. S70 Blade or FX900 Pro. B47R is more prolific but has never outperformed BiCS, period - end of story. Half the layers, older and still the better performer; that's just how superior BiCS architecture has proven to be. And we don't even need to get into how much better BiCS 4 is than V-NAND because even B47R arrayed SSDs easily outperform Samsung's V-NAND arrayed 980 Pro. All of these tests leverage the common vdBench workload generator, with a scripting engine to automate and capture results over a large compute testing cluster. This allows us to repeat the same workloads across a wide range of storage devices, including flash arrays and individual storage devices. Our testing process for these benchmarks fills the entire drive surface with data, then partitions a drive section equal to 1% of the drive capacity to simulate how the drive might respond to application workloads. This is different than full entropy tests which use 100% of the drive and take them into a steady state. As a result, these figures will reflect higher-sustained write speeds.

Um novo conjunto de recursos vem com o SN850X, incluindo Predictive Loading, Overhead Balancing e Adaptive Thermal Management 5. The 1TB model is quoted with slightly lower numbers in sequential writes with 6.3GB/s, while random reads are a bit lower as well with 800,000 IOPS. The endurance rating is 600 TBW (total bytes written) for the 1TB, 1,200 TBW (2TB) and 2,400 TBW (4TB) with an MTTF rating of 1.75 million hours. Soup up your gaming experience with extremely low latency that loads graphics fast with minimal stutter and lagging for smooth, satisfying action. WD's NAND technology still lags behind its competitors, with its 112-Layer BiCS5 flash competing against 176-Layer flash from Micron and SK hynix. However, this has advantages, as WD's mature flash can be carefully and reliably binned. BiCS5 also has 1Tb dies available for higher-capacity SSDs. Today’s A-list titles can take up 200GB 2 or more of storage. A range of capacities from 1TB to 4TB 2 means you get to keep more games at the ready and get into the action fast.

Western Digital Black SN850X

WD also implemented new updates to improve thermal consistency and energy efficiency via smoothing out the thermal throttling step function. WD Management Dashboard