Compare Storage
Share Comparison
| Storage |  $79499 |  $1,09999 |
|---|---|---|
Capacity Gb | 18000 | 4000 |
Capacity | 18 TB | 4 TB |
Flash Type | - | TLC |
Form Factor | 3.5" | M.2 2280 |
Disk RPM | 7200 RPM | - |
Heatsink | No | No |
Bus | SATA Gen 3 | M.2 PCIe 4.0 x4 |
NVMe | No | Yes |
PCIe Standard | N/A | PCIe 4.0 |
Random I/O per Second (Read) | - | 1,400,000 |
Random I/O per Second (Write) | - | 1,550,000 |
SATA Speed | 6 Gb/s | - |
Sequential Read Speed | - | 7,450 MB/s |
Sequential Write Speed | - | 6,900 MB/s |
Storage Type | Mechanical Disk | Solid State Disk |
TDP | - | 8.1W |
Part Number | WD181PURP | MZ-V9P4T0BW MZ-V9P4T0B |
Comparison Analysis
Comparing the WD Purple Pro vs 990 PRO reveals distinct differences in their targeted use cases.
The WD Purple Pro is the more budget-friendly option, costing approximately $305 (38%) less than the 990 PRO.