Silicon Power UD90 1TB
Score: 80/100
Western Digital WD Blue SN5000 500GB
Score: 89/100Rankings
The WD Blue SN5000 500 GB is a budget-friendly PCIe 4.0 NVMe SSD delivering strong 5,000 MB/s reads and respectable endurance, ideal for mainstream upgrades. Its DRAM-less design keeps power low, though write performance and thermal handling lag behind premium models.
The Silicon Power UD90 1TB PCIe 4.0 SSD delivers flagship-class sequential speeds at a budget price, but its DRAM-less design and lack of a heatsink lead to thermal concerns and mixed reliability reports.
| Attribute | | |
|---|---|---|
1,000 GBbest | 500 GB | |
5,000 MB/sbest | 5,000 MB/sbest | |
4,800 MB/sbest | 4,000 MB/s | |
570,000 IOPSbest | 460,000 IOPS | |
600,000 IOPS | 770,000 IOPSbest | |
600 TBWbest | 300 TBW | |
5 yearsbest | 5 yearsbest | |
| ↓ lower better | — | 6.3 Wbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(4) | ||
Sequential Write Speed (MB/s) | 4800 MB/s | 4000 MB/s |
Random Read IOPS (IOPS) | 570000 IOPS | 460000 IOPS |
Random Write IOPS (IOPS) | 600000 IOPS | 770000 IOPS |
Interface | PCIe Gen4 x4 | PCIe Gen 4.0 x4 |
Storage(2) | ||
Capacity (GB) | 1000 GB | 500 GB |
Endurance (TBW) (TBW) | 600 TBW | 300 TBW |
Design & Build(2) | ||
Weight (g) | 8 g | 5.7 g |
Thickness (mm) | 3.5 mm | 2.54 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the UD90 as a value champion with strong sequential performance, but caution about heat and the absence of an included heatsink.
Everyday users love the fast boot and gaming responsiveness, yet many complain about overheating, premature failures, and occasional data corruption.
“"new Value Champion" - Tom's Hardware”
“"great deal" for 1TB of PCIe 4.0 storage”
“"sudden drive death within months"”
Professional reviewers view the SN5000 as a solid upgrade from SATA and PCIe 3.0 SSDs, highlighting its TLC NAND, dynamic SLC cache, and budget-friendly pricing. While they commend its value and lack of a required heatsink, they caution that real-world pricing and the drive's lower write performance keep it from challenging premium offerings.
Everyday users generally praise the drive for fast boot times, reliable operation, and the long warranty, but many complain about fulfillment errors, unresponsive seller support, and occasional heat buildup during intensive tasks.
