Silicon Power XS70 4Tb NVMe tech review

Posted on November 18, 2022 by Raymond Chen

How fast is the Silicon Power XS70 4Tb and further specs explore in our article.

Silicon Power XS70 4Tb NVMe tech review

Silicon Power's 4Tb XS70 NVMe works on Phison PS5018-E18 controller. This SSD has DRAM Samsung DDR4 to keep a map of where data is located on the NVMe SSD. The XS70 comes equipped with Micron 3D TLC flash memory. SSD also available in 1 Tb and 2 Tb capacities.

Performance and benchmarks

NVMe SSD works on PCIe M.2 4.0 x 4 bus with sequential write speeds equals to 6800 MB/s, and read speeds 7300 Mbps.

Endurance and warranty

Silicon Power give 5 years warranty that limited by endurance 3000 TBW.


Category Value
Capacity 4 Tb
Interface M.2 4.0 x 4
Controller Phison PS5018-E18
Memory type Micron 3D TLC
DRAM Samsung DDR4
Read speed (Mb/s) 7300
Write speed (Mb/s) 6800
Read IOPS n/a
Write IOPS n/a
Endurance (TBW) 3000
MTBF (million hours) n/a
Warranty (years) 5


XS70 (4Tb) produced by Silicon Power use PCIe 4.0 that is significantly faster than PCIe 3. The maximum write speed is 6800 Mb/s, that is faster than has most of rivals. The NVMe SSD has endurance 3000 TBW, that is good in comparison with competitors. Weighing all these factors, our editor recommend to buy Silicon Power XS70 4Tb for your PC.

+ Pros

  • Excellent writing speed
  • PCIe 4.0
  • Capacity
  • Endurance

- Cons

  • None

Buy this or similar SSD:

Video Review

Silicon Power XS70 SSD Review, PC Benchmarks & PS5 Testing


The Silicon Power XS70 has Samsung DDR4. DRAM makes SSD faster, but more expensive.

The Silicon Power XS70 due to the high density of memory chips requires installation of extra heat sink. This will lower temperature of the memory chips and controller. Some laptops or motherboards already has thermal pads below and above the SSD to improve performance during heavy loads.

The Silicon Power XS70 4Tb has sequential write speed 6800 Mb/s, maximum read speed 7300 Mb/s. NVMe run on Phison PS5018-E18 controller and M.2 4.0 x 4 high-speed serial computer expansion bus standard. The memory type is Micron 3D TLC.
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