Western Digital Quietly Launches the SN5000 Budget NVMe SSD
Western Digital has released a new budget friendly SSD that got a serious jump in model number, since the company decided to call it the SN5000. Its predecessor is the SN580 launched just under a year ago and price wise, it's the better option of the two. The new SN5000 uses the same BiCS 5 TLC NAND as the SN580 on the 500 GB to the 2 TB SKU, but according to Anandtech, the 4 TB uses BiCS 6 QLC NAND. The SN5000 is still a PCIe 4.0 x4 NVMe drive, but the overall performance has been significantly improved. If we use the 1 TB SKU for comparison, then the sequential read speeds have gone up by 1 GB/s from 4150 MB/s to 5150 MB/s. The sequential write speed is up 750 MB/s from 4150 MB/s to 4900 MB/s.
As for random performance, the read IOPS are up from 600K IOPS to 730K IOPS and the write IOPS are up slightly from 750K to 770K. The 4 TB QLC SKU is said to deliver even better performance with the exception of the random read IOPS. The 1 TB SKU is said to have a write endurance of 600 TBW, but the 4 TB SKU only offers 1200 TBW. That's 0.33 drive writes per day (DWPD) for the 1 TB SKU vs. 0.16 DWPD for the 4 TB SKU, showing the weakness of the QLC NAND. A new feature for the SN5000 series compared to previous WD Blue NVMe drives is support for TGC Pyrite 2.01 encryption. The WD SN5000-series starts at US$70 for the 500 GB model, going up to US$80 for 1 TB, US$140 for 2 TB and topping out at US$280 for the 4 TB model. WD only seems to have the 500 GB model in stock, with all the others being available in 3-4 weeks time. All SKUs come with a five year warranty.
As for random performance, the read IOPS are up from 600K IOPS to 730K IOPS and the write IOPS are up slightly from 750K to 770K. The 4 TB QLC SKU is said to deliver even better performance with the exception of the random read IOPS. The 1 TB SKU is said to have a write endurance of 600 TBW, but the 4 TB SKU only offers 1200 TBW. That's 0.33 drive writes per day (DWPD) for the 1 TB SKU vs. 0.16 DWPD for the 4 TB SKU, showing the weakness of the QLC NAND. A new feature for the SN5000 series compared to previous WD Blue NVMe drives is support for TGC Pyrite 2.01 encryption. The WD SN5000-series starts at US$70 for the 500 GB model, going up to US$80 for 1 TB, US$140 for 2 TB and topping out at US$280 for the 4 TB model. WD only seems to have the 500 GB model in stock, with all the others being available in 3-4 weeks time. All SKUs come with a five year warranty.
