Silicon Power UD90 1Tb NVMe SSD technical review

Posted on November 17, 2022 by Raymond Chen

What memory type installed in Silicon Power UD90 1Tb and further characteristics read below on our page.

Silicon Power UD90 1Tb NVMe SSD technical review

Silicon Power UD90 1Tb use Phison E21T controller. The UD90 comes equipped with Micron TLC memory. NVMe SSD also available in 250 Gb and 500 Gb capacities.

Performance and benchmarks

Drive use PCIe M.2 4.0 x 4 computer expansion bus standard with maximum read speeds 4800 MB/s, and sequential write speeds equals to 4200 MB/s. UD90 has IOPS 739000 on writing and 739000 on reading operations.

Endurance and warranty

Silicon Power provide 5 years warranty period that limited by 600 Total Bytes Written.


Category Value
Capacity 1 Tb
Interface M.2 4.0 x 4
Controller Phison E21T
Memory type Micron TLC
DRAM n/a
Read speed (Mb/s) 4800
Write speed (Mb/s) 4200
Read IOPS 739000
Write IOPS 739000
Endurance (TBW) 600
MTBF (million hours) n/a
Warranty (years) 5


Silicon Power UD90 1Tb use PCIe 4.0 that is significantly faster than PCIe 3. The sequential write speed is 4200 Mb/s, that is common for this interface. The SSD provide possibility to write 600 TBW, that is poor against closest competitors. After evaluating all the facts, our editor strongly recommend to purchase Silicon Power UD90 1Tb for your PC.

+ Pros

  • Good writing speed
  • PCIe 4.0
  • Capacity

- Cons

  • Writing speed

Buy this or similar SSD:

Video Review

Новый PCIe 4.0 безбуферник - SSD Silicon Power UD90 1TB (SP01KGBP44UD9005)


The Silicon Power UD90 1Tb has no DRAM or information about it is not known. Dynamic Random-Access Memory makes SSD work faster, but more expensive.

The Silicon Power UD90 1Tb due to the low density of memory chips can operate with no additional heat sinks. Some laptops or motherboards designed with additional cooling above and below the storage to enhance performance during heavy loads.

The UD90 1Tb has write speed 4200 Mb per second, read speed 4800 Mb/s. NVMe works on Phison E21T controller and M.2 4.0 x 4 high-speed serial computer expansion bus standard. The memory type is Micron TLC.
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