Silicon Power UD70 1Tb NVMe SSD tech review

Posted on November 07, 2022 by Raymond Chen

Silicon Power's UD70 internal SSD use PCIe M.2 3.0 x 4 bus. Detailed characteristics of this NVMe on our page.

Silicon Power UD70 1Tb NVMe SSD tech review

Silicon Power's 1Tb UD70 internal SSD works on Phison PS5012-E12S-32. This NVMe SSD has DRAM SLC Caching DRAM Buffer to keep a map of where data is located on the NVMe SSD. The UD70 comes equipped with Micron 3D QLC memory. This drive besides, available in 500 Gb and 2 Tb capacities.

Performance and benchmarks

Silicon Power UD70 works on PCIe M.2 3.0 x 4 interface with write speeds equals to 3000 MB/s, and maximum read speeds 3400 MB/s.

Endurance and warranty

Silicon Power provide 5 years warranty period. As well it has 1.8 million hours mean time between failure.


Category Value
Capacity 1 Tb
Interface M.2 3.0 x 4
Controller Phison PS5012-E12S-32
Memory type Micron 3D QLC
DRAM SLC Caching DRAM Buffer
Read speed (Mb/s) 3400
Write speed (Mb/s) 3000
Read IOPS n/a
Write IOPS n/a
Endurance (TBW) n/a
MTBF (million hours) 1.8
Warranty (years) 5


Silicon Power UD70 1Tb may work on PCIe Gen3 that is twice slower than PCIe 4. The write speed is 3000 Mb/s, that is pretty good for this interface. After evaluating all the facts, we strongly advise to buy Silicon Power UD70 1Tb for your PC.

+ Pros

  • Good writing speed
  • Capacity

- Cons

  • PCIe 3.0

Buy this or similar SSD:

Video Review

Silicon Power UD70 2TB Gen3x4 M.2 SSD - review


The Silicon Power UD70 has SLC Caching DRAM Buffer. DRAM in their controller help to increase I/O performance and endurance.

The Silicon Power UD70 1Tb due to the low density of memory chips can work without additional cooling systems. Some motherboards or laptops from the factory has thermal pads below or above the drive to enhance productivity during high loads.

The Silicon Power UD70 1Tb has write speed 3000 Mb per second, read speed 3400 Mb per second. Storage operate on Phison PS5012-E12S-32 controller and M.2 3.0 x 4 interface standard. The NAND flash memory type is Micron 3D QLC.
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