Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD

Written analysis

Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD at a glance

The Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD is a 500 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 1.4. The controller is Phison E21T. Flash type is TLC 176-Layer. Cache is listed as Host-Memory-Buffer (HMB).

Rated sequential throughput is 4800 MB/s read and 3500 MB/s write. Random throughput is 450K read IOPS and 550K write IOPS. The calculated specification score is 62.2.

Best fit: General storage workloads where compatibility and price matter more than peak transfer rates.

Endurance and thermals

Rated endurance is 300 TBW, or approximately 600 TBW per TB of capacity. The listed warranty is 5 years.

Current value

At $110, the drive costs $219.94 per TB. Performance / price is 84.8 and capacity value is 42.4. Compare these values with nearby drives below; interface generation and headline speed alone do not determine value.