January 21, 2022

WD Purple SN700 1TB NVMe SSD Overview Vastly Improved


WD Red SN700 1TB
WD Purple SN700 1TB

Immediately we’re looking on the WD Purple SN700 1TB NVMe SSD. That is the successor to the WD Purple SA500 that we beforehand reviewed, providing considerably higher efficiency by way of use of NVMe somewhat than SATA connectivity. Again after I initially seemed on the SA500, I got here away usually underwhelmed by each the feature-set and efficiency of that drive. In consequence I’m crossing my fingers that WD has improved their Purple SSD, so allow us to get to the testing and discover out.

WD Purple SN700 1TB NVMe SSD

The WD Purple SN700 1TB is available in a single-sided M.2 2280 (80mm) kind issue.

WD Red SN700 1TB Front
WD Purple SN700 1TB Entrance

The highest of the drive is residence to all elements. The NAND and the controller chip are each manufactured in-house by SanDisk/WD, and moreover, a DRAM cache can be current. The NAND sort is just not specified by WD however is presumed to be TLC.

WD Red SN700 1TB Back
WD Purple SN700 1TB Again

Being single-sided, there may be nothing on the underside of the drive. Regardless of this drive being focused at NAS units for array cache functions, there isn’t a bodily energy loss safety (PLP) circuitry current on the drive.

WD Purple SN700 Specs

The WD Purple SN700 line of SSDs is offered at capacities starting from 250GB to 4TB. Listed below are the specs:

WD Red SN700 1TB Specs
WD Purple SN700 1TB Specs

Our evaluate unit is the 1TB mannequin, and by the spec sheet ought to supply first rate efficiency for a PCIe 3.0 drive. Endurance was an space the place I felt the SA500 was missing beforehand, since regardless of its worth premium and goal market as a cache drive the SA500 didn’t supply rated endurance numbers considerably greater than commodity shopper SSDs. That is one space the place the SN700 exhibits massive enchancment over its predecessor drive with 3.3X the rated endurance on the identical 1TB capability level. Efficiency specs are additionally equally improved because of the transfer to NVMe/PCIe 3.0; the SA500 rated efficiency was not prime tier even amongst SATA SSDs of the day, whereas the SN700 is nearer to a excessive finish PCIe 3.0 drive at 3430 MB/s sequential learn and 3000 MB/s sequential write. WD continues to be taking one thing of a conservative method of their Purple line SSDs and never providing PCIe 4.0 connectivity, however that’s considerably to be anticipated given that almost all small NAS units presently don’t assist PCIe 4.0. Rounding out the efficiency and sturdiness specs is a 5-year guarantee.

WD Red SN700 1TB CrystalDiskInfo
WD Purple SN700 1TB CrystalDiskInfo

CrystalDiskInfo may give us some fundamental details about the SSD, and confirms we’re working at PCIe 3.0 x4 speeds utilizing NVMe 1.3.

Take a look at System Configuration

We’re utilizing the next configuration for this check:

  • Motherboard: ASUS PRIME X570-P
  • CPU: AMD Ryzen 9 5900X (12C/24T)
  • RAM: 2x 16GB DDR4-3200 UDIMMs

Our testing makes use of the WD Purple SN700 1TB because the boot drive for the system, put in within the M.2_1 slot on the motherboard. The drive is stuffed to 85% capability with knowledge after which some is deleted, leaving round 60% used house on the amount.

Subsequent, we’re going to get into our efficiency testing.

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