web analytics

Phison’s PS5008-E8 NVMe SSD offers 3x Performance at the Same Cost as SATA

Phison’s PS5008-E8 NVMe SSD offers 3x Performance at the Same Cost as SATA

Phison PS5008 is an economical solution that offers the perfect balance between performance and cost. Currently, products with the fastest protocol demand a premium price, but there is plenty of value in the NVMe market. These speedy NVMe products currently contend with high-performance SATA SSDs.

Phison isn’t the only company targeting the entry-level and mainstream NVMe markets. There are controller designs from Toshiba, SMI, and Marvell. Other companies have controllers tucked away from the public eye, as well. Maxiotek, Realtek, VIA, and others, play show and tell behind closed doors. NVMe is clearly poised to gain market share through volume, so all the controller vendors want to have a product ready.

Phison has two solutions in the final stages of development. The PS5008-E8T is a DRAMless design that uses Host Memory Buffer (HMB) technology to cache the physical-to-logical address map in your system’s memory. This E8T will be a very low-cost option for system builders and people shopping for an affordable NVMe performance upgrade.

The PS5008-E8 is the mainstream model in the E8 series. This controller increases performance by using local DRAM on the SSD. With the DRAM memory closer to the controller, the latency hop is lower than reaching out over the PCI Express bus to the system memory. We’ve yet to test an HMB device to measure latency, but the common claim is a 2x increase in retrieving and updating the address map. Phison plans to release the mainstream E8 NVMe controller before the E8T, but both will in retail products before the end of the year. If the current schedule holds true, Phison’s partners should have products on store shelves by the end of October.

Technical Specifications

Phison PS5008-E8
Capacity Sizes: 128GB, 256GB, , 1TB, 2TB
Lithography: UMC 40nm
Interface: PCIe 3.0 x2
Protocol: NVMe 1.3
Channels: 4
CE: 32
Sequential Read: 1,600 MB/s
Sequential Write: 1,100 MB/s
Random Read: 280,000 IOPS
Random Write: 225,000 IOPS
Encryption:  AES 256bit

Phison PS5008-E8T
Capacity Sizes: 128GB, 256GB, 512GB, 1TB
Lithography: UMC 40nm
Interface: PCIe 3.0 x2
Protocol: NVMe 1.3
Channels: 4
CE: 32
Sequential Read: 1,600 MB/s
Sequential Write: 1,100 MB/s
Random Read: 280,000 IOPS
Random Write: 225,000 IOPS
Encryption: Hardware AES 256bit

Phison’s new M.2 2280 design allows for up to six NAND emplacements on a single side of the PCB. Our 512GB sample features four NAND flash packages, the E8 controller, and a Nanya DRAM package. This drive uses Toshiba’s new 256Gbit TLC from the BiCS (Bit-Cost Scalable) NAND product line, which is the fancy trademark name for the company’s 3D flash. We’ve also seen the E8 in an add-in card form factor.

Controller Highlights

  • Compatible with PCI Express Revision 3.1
  • Compatible with NVMe 1.2
  • Compatible with PCIe I/II/III Interface
  • Configurable with 2Gb/4Gb/8Gb DDR3/DDR3L Cache (E8)
  • DRAMless HMB (E8T)
  • Upgradable Firmware

Physical Characteristics

  • 40nm CMOS Processing Node
  • Dual Core
  • 324-Pin TFBGA (E8)
  • 252-Pin TFBGA (E8T)
  • Operating Voltage: 1.1V (Controller Core), 3.3V Controller I/O
  • Built-In Regulator Supporting 1.2V/1.8V Flash I/O

NAND Support

  • Supports 1z nm MLC/TLC and 3D Flash
  • Supports Interleaving Operation: Up to 128-Plane and 4-Channel Flash Access
  • Supports MLC/TLC Large Block (8KB/16KB Page Sizes)


  • StrongECC
  • SmartECC
  • SmartFlush
  • GaranteedFlush
  • Built-in Static And Dynamic Wear-Leveling
  • Power Savings Implemented
  • End-To-End Data Path Protection
  • Host Memory Buffer (E8T)
  • Single Root I/O Virtualization
  • AES-256
  • Pyrite

The PS5008-E8 already looks promising in its current form. Phison has plans to optimize several aspects of the new controller to produce products with more balance. The PS5008-E8 products should be cost-competitive with -gen 3D SATA SSDs. The new Western Digital Blue 3D and Ultra 3D raised the performance bar for mainstream-priced consumer SSDs, but given equal pricing, it would be foolish to buy a SATA SSD when entry-level NVMe SSDs offer double, and in some cases triple, the performance.

Credits: http://www.tomshardware.com/reviews/phison-e8-nvme-ssd,5181.html

[amazon_link asins=’B01MQU72O9,B01MS6BYJD,B01LXS4TY6,B01M20VBU7,B00TGIVZTW,B01LXS4TYB,B01LYFKX41,B01IR05DLK’ template=’ProductGrid’ store=’softcarecs-21′ marketplace=’IN’ link_id=’776c16ad-c5ee-11e7-b5b3-979ef4c8721c’]


Linux & Windows Geek, Blogger & System Administrator

Leave your message

Scroll Up