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Western Digital SN750 1 TB

1 TB
Capacity
WD 20-82-007011
Controller
TLC
Flash
PCIe 3.0 x4
Interface
M.2 2280
Form Factor
Package
Package
PCB Front
Anandtech
PCB Front
PCB Back
Tom's Hardware
PCB Back
DRAM
Anandtech
DRAM
Flash
Anandtech
Flash
SSD Controller
Controller
NAND Die
NAND Die
The Western Digital SN750 is a solid-state drive in the M.2 2280 form factor, launched on January 18th, 2019. It is available in capacities ranging from 250 GB to 4 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Western Digital SN750 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the 20-82-007011 Triton MP28 from WD, a DRAM cache chip is available. Western Digital has installed 64-layer TLC NAND flash on the SN750, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are absorbed more quickly. The cache is sized at 14 GB, once it is full, writes complete at 1600 MB/s. The SN750 is rated for sequential read speeds of up to 3,400 MB/s and 3,100 MB/s write; random IO reaches 550K IOPS for read and 520K for writes.
At its launch, the SSD was priced at 250 USD. The warranty length is set to five years, which is an excellent warranty period. Western Digital guarantees an endurance rating of 600 TBW, a typical value for consumer SSDs.

Solid-State-Drive

Capacity: 1 TB (1000 GB)
Variants: 250 GB 500 GB 1 TB 2 TB 4 TB
Overprovisioning: 92.7 GB / 10.0 %
Production: Active
Released: Jan 18th, 2019
Price at Launch: 250 USD
Part Number: WDS100T3X0C-00SJG
Market: Consumer

Physical

Form Factor: M.2 2280 (Single-Sided)
Interface: PCIe 3.0 x4
Protocol: NVMe 1.3
Power Draw: 1.2 W (Idle)
2.5 W (Avg)
5.8 W (Max)

Controller

Manufacturer: WD
Name: 20-82-007011 Triton MP28
Architecture: ARM 32-bit Cortex-R
Core Count: Triple-Core
Foundry: TSMC
Process: 28 nm
Flash Channels: 8 @ 800 MT/s
Chip Enables: 4
Controller Features: DRAM (enabled)

NAND Flash

Manufacturer: Toshiba
Name: BiCS3
Rebranded: 05560 512G (Rebranded by Sandisk)
Type: TLC
Technology: 64-layer
Speed: 533 MT/s
Capacity: 2 chips @ 4 Tbit
Toggle: 2.0
Topology: Charge Trap
Process: 19 nm
Die Size: 132 mm²
(3.9 Gbit/mm²)
Dies per Chip: 8 dies @ 512 Gbit
Planes per Die: 2
Decks per Die: 2
Read Time (tR): 80 µs
Program Time (tProg): 695 µs
Die Read Speed: 400 MB/s
Die Write Speed: 46 MB/s
Endurance:
(up to)
3000 P/E Cycles
(30000 in SLC Mode)
Page Size: 16 KB
Block Size: 768 Pages
Plane Size: 2732 Blocks

DRAM Cache

Type: DDR4-2400 CL17
Name: SK Hynix H5AN8G6NAFR-UHC
Capacity: 1024 MB
(1x 1024 MB)
Organization: 8Gx16

Performance

Sequential Read: 3,400 MB/s
Sequential Write: 3,100 MB/s
Random Read: 550,000 IOPS
Random Write: 520,000 IOPS
Endurance: 600 TBW
Warranty: 5 Years
MTBF: 1.8 Million Hours
Drive Writes Per Day (DWPD): 0.3
SLC Write Cache: approx. 14 GB
(static only)
Speed when Cache Exhausted: approx. 1600 MB/s

Features

TRIM: Yes
SMART: Yes
Power Loss Protection: No
Encryption:
  • No
RGB Lighting: No
PS5 Compatible: No

Reviews

Same Drive

This section lists other SSDs in our database using the exact same hardware components

Notes

NAND Die:

Read latency:
tR: 64µs (SBL)
tR: 80µs (ABL)
tPROG withoug Overhead: ~ 695µs (Avg) (~ 46 MB/s per die)
tPROG w/ ~25% Overhead: ~ 927µs (Avg) (~ 34.5 MB/s per die)

Jun 1st, 2024 10:26 EDT change timezone

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