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* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.| Model | WDS100T2X0E |
| Release Date |
August 2022
* First availability for purchase, it may not correspond to the actual market launch date. |
| Series | BLACK SN850X NVMe |
| Capacity | 1000 GB |
| Interface | PCIe Gen4 x4 |
| NVME | Yes |
| Form Factor | M.2-2280 |
| SSD Controller | 20-82-20035-B1 |
| NAND Flash Type | BiCS5 112-layer TLC |
| Max Sequential Read | Up to 7300 MB/s |
| Max Sequential Write | Up to 6300 MB/s |
| MTBF | 1.75M Hours |
(Higher is better)
| Crucial T700 1TB heatsink (29th) | 123% | |
| Western Digital BLACK SN850X 2TB (31st) | 115% | |
| Western Digital BLACK SN850X 2TB + Heatsink (31st) | 115% | |
| Samsung 990 PRO 4TB + Heatsink (33rd) | 106% | |
| Samsung 990 PRO 4TB (33rd) | 106% | |
| Western Digital SN850 2TB + Heatsink (35th) | 103% | |
| Western Digital SN850 2TB (35th) | 103% | |
| Samsung 990 PRO 2TB + Heatsink (37th) | 102% | |
| Samsung 990 PRO 2TB (37th) | 102% | |
| Western Digital BLACK SN850X 1TB + Heatsink (39th) | ~ | |
| Western Digital BLACK SN850X 1TB (39th) | 100% | |
| Samsung 990 EVO PLUS 4TB (41st) | 99% | |
| Crucial P5 Plus 2TB (42nd) | 98% | |
| Western Digital SN850 1TB (43rd) | 95% | |
| Western Digital SN850 1TB + Heatsink (43rd) | 95% | |
| Samsung 980 PRO 2TB (45th) | 94% | |
| Samsung 990 PRO 1TB (46th) | 93% | |
| Samsung 990 PRO 1TB + Heatsink (46th) | 93% | |
| Samsung 990 EVO PLUS 2TB (48th) | 90% | |
| Samsung 980 PRO 1TB (49th) | 87% | |
| Crucial P5 Plus 1TB (50th) | 86% |
Price-to-Performance Analysis:
The WD Black SN850X takes the company's flagship PCIe 4.0 gaming SSD and makes it even better, offering higher capacity and improved test results (including a new PC Labs record in the 3DMark Storage benchmark). About all it lacks is hardware-based security.
The WD Black SN850X is a powerful, high-end PCIe 4.0 SSD that's near the top of the heap in almost every category. The SN850X is available in high capacities and has an optional RGB-laden heatsink for most models, but pricing and the questionable Game Mode 2.0 keep it from being the very best.
WD's Black SN850 drive was already a very good flagship drive but with an upgrade from 96-layer to 112-layer NAND and improvements to the firmware, the SN850X takes over that mantle with great effect. But the price could do with some tweaking.