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  • Post published:09/05/2021
  • Post last modified:09/05/2021

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Silicon Power US70 1TB M.2 PCIe 4.0 NVMe SSD
Danger Will Robinson: we’re passing the 5 GB/sec marker

We review the Silicon Power US70 1TB PCIe Gen 4.0 SSD. It among the best performing NVMe SSDs we have tested to date, rating at 5 GB/sec. Of course, it is an SSD you can seat into any PCIe 3.0 compatible PC, however, if you place it into a compatible Ryzen processors B550/X570 based PC, some magic happens as you are running 4000 to 5000 MB/s numbers and higher, thanks to the new PCIe 4.0 interface and a little TLC from Phison, well Toshiba strictly speaking.

In the past year, you’ll have seen a few PCIe Gen 4.0 related announcements. Of course, the dazzling numbers from SSDs at that speed do impress. Albeit hard to spot Silicon Power released these units at roughly €0,184 per GB if you get the 1TB model as tested. The specs are great the numbers dazzling, but will this unit deliver what it claims? As filling up the bus with 4 maybe even 5 GB/s speeds, is a difficult challenge. The SSD comes in an M.2 package. Using the PCIe lanes interface is so much more capable as it can deal with way more bandwidth using PCI-Express lanes Gen 4.0. As such, M.2 solutions are intended for high-end and enthusiast-class motherboards and similarly positioned laptops.

  • Max Sequential Read – Up to 5000 MBps
  • Max Sequential Write – Up to 4400 MBps
  • 4KB Random Read – Up to 750K IOPS (QD32)
  • 4KB Random Write – Up to 700K IOPS (QD32)
  • Endurance 1TB >1,800TBW 2TB >3,600TBW
  • Warranty 5-Years

While the stability and safety of your data have become a number one priority for the manufacturers, the technology keeps advancing at as fast a pace as it does, the performance numbers a good SSD offers these days are simply breathtaking. You get between 450 MB/s to 500 MB/sec on SATA3 which is the norm for a single controller based SSD. In the year 2018 by combining advanced NAND Flash controller with PCIe Gen3 (8Gb/s) x 4, NvMe 1.3 interface, and 3D NAND Flash, PCIe M.2 delivers sequential read speed up to 3200MB/s and sequential write speed up to 1500MB/s. It is now 2021, and PCIe Gen 4 NvMe 1.3 is here, offering closer to 5 GB/s performance – ranges and that is factor 10 over the SATA3 SSD. A couple of years ago a 128 GB SSD was hot stuff, then slowly we moved to 256 GB, last year 512 GB for an SSD in a PC was the norm, this upcoming year we’ll transition slowly to roughly Multi-TB SSDs as the norm. With the market being so huge, fierce, and competitive, it brought us to where we are today… nice volume SSDs at acceptable prices with very fast performance. We’ll inspect the product PCB and components later on in the review in detail. This unit uses vertically stacked NAND (also referred to as 3D NAND) and is now available in multiple capacities. With a low power design, this drive will be among the mainstream to fastest SSDs we have ever tested.

   

TypeSolid State modules (SSM)
Form factorM.2 2280
ControllerPhison PS5016-E16)
InterfaceM.2/M-Key (PCIe 4.0 x4)
Read5000MB/s
Write4400MB/s
IOPS 4K read/Write750k/700k
Memory modules3D-NAND TLC, (BiCS4)
TBW1800 TBW (1GB) / 3600 TBW (2TB)
Reliability prediction1.7 Mio. hours (MTBF)
ControllerPhison PS5016-E16, 8 channels
Cache1GB (DDR4), SLC-Cache
ProtocolNVMe 1.3

 

The SSD is a Non-Volatile Memory Express (NVMe 1.3) M.2 form factor SSD, it has been fitted with Vertically stacked NAND  TLC. The performance numbers of a proper SATA3 SSD offers these days are simply excellent, but with the more niche NVMe SSDs, you can easily quadruple performance, which offers serious numbers. The unit follows a smaller M.2 2280 form factor (8cm) so it will fit on most ATX motherboards capable of M.2 just fine. Anyway, wanna see how fast the SP really is? Next page and onwards into the review then.

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