Lexar NM700 1 TB M.2 NVMe SSD Review 8

Lexar NM700 1 TB M.2 NVMe SSD Review

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Introduction

Lexar Logo

Lexar has made a name for itself in the portable storage market—they are very well known for their SD cards and USB sticks, so it's natural for them to expand into other areas of flash storage, like consumer SSDs. Lexar was founded as a subsidiary of Micron, but was sold to Longsys in 2017 and has been operating quite independently since.



This is the first review on our new Ryzen-based SSD bench setup. The NM700 is Lexar's flagship M.2 NVMe SSD. We reviewed the NM610 a while ago, which has turned out to be a pretty interesting price/performance option, as its price has come down significantly. While the NM610 uses a Silicon Motion SM2263XT controller, the NM700 is built around a Marvell 88SS1092 "Eldora Plus" controller—it's been a while since we've reviewed a Marvell-powered SSD. The flash chips have been rebranded by Longsys, so we don't know any details about them, other than that they are TLC.

The Lexar NM700 is available in capacities of 256 GB ($50), 512 GB ($80), and 1 TB ($170). Endurance for these models is set at 150 TBW, 300 TBW, and 600 TBW respectively. Lexar includes a five-year warranty.

Specifications: Lexar NM700 1 TB SSD
Brand:Lexar
Model:LNM700-1TRB
Capacity:1000 GB (931 GB usable)
24 GB additional overprovisioning
Controller:Marvell 88SS1092
Flash:3D TLC
Longsys rebranded
DRAM:1x 1 GB LPDDR3-1866
Nanya NT6CL256T32CM-H1
Endurance:600 TBW
Form Factor:M.2 2280
Interface:PCIe Gen 3 x4, NVMe 1.3
Device ID:Lear NM700
Firmware:1.10.1
Warranty:5 years
Price at Time
of Review:
$170 / 17 cents per GB

Packaging

Package Front
Package Back


The Drive

SSD Front
SSD Back

The drive uses the M.2 2280 form factor, which makes it 22 mm wide and 80 mm long.

SSD Interface Connector

Like most M.2 NVMe SSDs, the Lexar NM700 connects to the host system over a PCI-Express 3.0 x4 interface.

SSD Teardown PCB Front
SSD Teardown PCB Back

On the PCB, you'll find the controller and two flash chips, a DRAM cache chip is installed, too.

Chip Component Analysis

SSD Controller

The eight-channel flash controller is made by Marvell. Once a leader in SSD controller chips, seeing one of their chips on a modern SSD is quite rare. Their 88SS1092 was released around 2018. Internally, it uses a triple-core ARM Cortex R5 controller running at up to 500 MHz.

SSD Flash Chips

The two flash chips each have a capacity of 512 GB. They have been rebranded by Longsys, Lexar's parent company, which buys up bulk unpackaged flash chips, tests them in their facilities, and packages them.

SSD DRAM Chip

A Nanya DDR3-1866 chip provides 1 GB of fast DRAM storage for the controller to store the mapping tables in.

Test Setup

Test System SSD 2021
Processor:AMD Ryzen 3 3300X @ 4.3 GHz
Zen 2, 16 MB Cache
Motherboard:ASUS Prime X570-Pro
BIOS 2606 / AGESA 1.0.8.0
Memory:Zadak Spark RGB, 16 GB DDR4
@ 3200 MHz 16-18-18-38
Graphics:EVGA GeForce RTX 2060 KO 6 GB
Case:DarkFlash DLX22
Operating System: Windows 10 Professional 64-bit
Version 2004 (May 2020 Update)
Drivers:AMD Chipset: 2.07.14.327
NVIDIA: 452.06 WHQL



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May 19th, 2022 22:05 EDT change timezone

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