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Lexar NM620 2 TB (IG5216 + Micron B27B)

2 TB
Capacity
IG5216
Controller
TLC
Flash
PCIe 3.0 x4
Interface
M.2 2280
Form Factor

Multiple hardware versions found.

Performance could vary due to unannounced flash/controller changes.

SSD Controller
Controller
The Lexar NM620 is a solid-state drive in the M.2 2280 form factor, launched on March 10th, 2021. It is available in capacities ranging from 256 GB to 2 TB. This page reports specifications for the 2 TB variant. With the rest of the system, the Lexar NM620 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the IG5216 (Shasta+) from InnoGrit, a DRAM cache is not available. Lexar has installed 96-layer TLC NAND flash on the NM620, the flash chips are made by Micron. Please note that this SSD is sold in multiple variants with different NAND flash or controller, which could affect performance, the "Notes" section at the end of this page has more info. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. The cache is sized at 208 GB, once it is full, writes complete at 800 MB/s. Copying data out of the SLC cache (folding) completes at 300 MB/s. The NM620 is rated for sequential read speeds of up to 3,300 MB/s and 3,000 MB/s write; random IOPS reach up to 300K for reads and 256K for writes.
At its launch, the SSD was priced at 125 USD. The warranty length is set to five years, which is an excellent warranty period. The TBW rating for the Lexar NM620 2 TB is unknown.

Solid-State-Drive

Capacity: 2 TB (2048 GB)
Variants: 256 GB 512 GB 1 TB 2 TB
Hardware Versions:
Overprovisioning: 140.7 GB / 7.4 %
Production: Active
Released: Mar 10th, 2021
Price at Launch: 125 USD
Part Number: LNM620X002T-RNNNU
Market: Consumer

Physical

Form Factor: M.2 2280 (Single-Sided)
Interface: PCIe 3.0 x4
Protocol: NVMe 1.4
Power Draw: Unknown

Controller

Manufacturer: InnoGrit
Name: IG5216 (Shasta+)
Architecture: ARM 32-bit Cortex-R5
Core Count: Dual-Core
Frequency: 525 MHz
Foundry: TSMC
Process: 28 nm
Flash Channels: 4 @ 1,066 MT/s
Controller Features: HMB (enabled)

NAND Flash

Manufacturer: Micron
Name: B27B FortisFlash
Type: TLC
Technology: 96-layer
Speed: 533 MT/s .. 1200 MT/s
Capacity: 4 chips @ 4 Tbit
ONFI: 4.1
Topology: Floating Gate
Dies per Chip: 8 dies @ 512 Gbit
Planes per Die: 4
Decks per Die: 2
Word Lines: 108 per NAND String
88.9% Vertical Efficiency
Read Time (tR): 87 µs
Program Time (tProg): 800 µs
Block Erase Time (tBERS): 15 ms
Die Write Speed: 84 MB/s
Endurance:
(up to)
3000 P/E Cycles
(40000 in SLC Mode)
Page Size: 16 KB
Block Size: 3456 Pages
Plane Size: 338 Blocks

DRAM Cache

Type: None
Host-Memory-Buffer (HMB): 64 MB

Performance

Sequential Read: 3,300 MB/s
Sequential Write: 3,000 MB/s
Random Read: 300,000 IOPS
Random Write: 256,000 IOPS
Endurance: Unknown
Warranty: 5 Years
MTBF: 1.5 Million Hours
SLC Write Cache: approx. 208 GB
(dynamic only)
Speed when Cache Exhausted: approx. 800 MB/s
Cache Folding Speed: 300 MB/s

Features

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

Same Drive

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

Notes

Drive:

Controller has been rebranded by Lexar / LongSys

Controller:

NAND Flash BUS: could be close to 1066 MT/s not confirmed though.

NAND Die:

tPROG - 800 µs (withouh Vpp)
tPROG w/ ~ 25% Overhead: ~ 914 µs (Avg 70 MB/s per each die)

Oct 5th, 2024 03:16 EDT change timezone

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