Crucial P1 500GB NVMe SSD Review JReynolds .

The Crucial P1 is the first SSD we have reviewed that uses QLC (Quad Level Cell) NAND. Please read on to find out what we make of the Crucial P1 and its use of this exciting new technology.

The Crucial P1 is the first SSD we have reviewed that uses QLC (Quad Level Cell) NAND. Please read on to find out what we make of the Crucial P1 and its use of this exciting new technology.

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Crucial P1 500GB NVMe SSD Review

Posted 23 January 2019 16:39 CET by Jeremy Reynolds

 

 

Review: Crucial P1 500GB NVMe SSD

Reviewed by: J.Reynolds

Provided by:  Crucial

Firmware:  P3CR010

 

Introduction

Welcome to Myce’s review of the Crucial P1 500GB NVMe SSD.

The Crucial P1 is the first drive myce.com has reviewed that uses Micron’s QLC (Quad Level Cell) NAND – please see ‘NAND Basics’ below to appreciate the difference between QLC NAND and its preceding SLC, MLC and TLC NAND forms. Micron was the first NAND manufacturer to launch a QLC based product.

Pictures

Here are some pictures of the Crucial P1 that I tested, and its retail packaging –

 

 

 

 

Market Positioning and Specification

This is how Crucial positions the P1 –

 

Here is Crucial’s specification for the P1 –

NAND Basics

This picture shows a visual representation of the difference between SLC, MLC, TLC. and the new QLC NAND.  Essentially, each QLC cell can hold four times as much data as SLC, TLC (Three Level Cell NAND) can hold three times as much data as SLC, and MLC (Two Level Cell NAND) can gold two times as much data as SLC.  Please note that MLC actually stands for Multi Level Cell but I assume that when MLC NAND was named no one imagined the advent of TLC and QLC.

On the face of it QLC sounds much better than the other forms but managing its use is not without some significant challenges which are explained by Micron as follows –

So, the bottom line is.

QLC offers an opportunity to provide larger capacity solutions because of its greater density.

QLC does not offer the same level of endurance (the quantity of data that can be written) as SLC, MLC, and TLC, because of the increased level of insulator wear when writing data.

QLC may not be as fast as other forms of NAND.

QLC should offer the potential for a reduction in manufacturing costs which could in turn see a significant reduction in price per gigabyte reduction for buyers.


Now let’s head to the next page, to look at my approach to testing Client SSDs…..