
Silicon Power UD90 1TB
Score: 80/100
Crucial P510 2TB
Score: 66/100Rankings

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.

The Crucial P510 2 TB brings Gen5 speeds to a budget-friendly, single-sided package with good power efficiency and solid endurance, but its DRAM-less design and modest performance gain over high-end Gen4 drives limit its appeal for power users.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GBbest | 2 GB | |
5,000 MB/s | 11,000 MB/sbest | |
4,800 MB/s | 9,500 MB/sbest | |
570,000 IOPSbest | — | |
600,000 IOPSbest | — | |
600 TBW | 1,200 TBWbest | |
5 yearsbest | 5 yearsbest | |
1,500,000 hoursbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Sequential Read Speed (MB/s) | 5000 MB/s | 11000 MB/s |
Sequential Write Speed (MB/s) | 4800 MB/s | 9500 MB/s |
Interface | PCIe Gen4 x4 | PCIe 5.0 x4 |
Storage(2) | ||
Capacity (GB) | 1000 GB | 2 GB |
Endurance (TBW) (TBW) | 600 TBW | 1200 TBW |
Design & Build(1) | ||
Weight (g) | 8 g | 30 g |

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 rate the P510 at 3.5-3.8/5, praising its solid Gen5 throughput, power efficiency, and low thermal output while noting the performance uplift over premium Gen4 SSDs is modest and the DRAM-less design lags behind flagship Gen5 drives.
Everyday users appreciate the drive's reliability, easy installation in laptops and the PS5, and the noticeable boost in boot and application load times, but some are disappointed that the speed gains over existing Gen4 SSDs aren't as dramatic as expected.