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Kingston SSDNow UV400 240 GiB SSD Review

Let's test the SSDNow UV400 240 GiB, a value SSD from Kingston. Let's see how it performs against the SanDisk SSD Plus with the same capacity.

Home » Kingston SSDNow UV400 240 GiB SSD Review

Introduction

Contents

  • 1. Introduction
  • 2. The Kingston SSDNow UV400 120 GiB
  • 3. How We Tested
  • 4. Compressible Data Test
  • 5. Incompressible Data Test
  • 6. Conclusions

This time we tested one more value SSD, the Kingston SSDNow UV400 240 GiB. Let’s see how it performs, comparing it to a SanDisk SSD Plus with the same capacity.
Recently, we tested the 120 GiB Kingston SSDNow UV400, but we know SSDs from different capacities, even from the same model, have different performances. Because of this, now we tested the 240 GiB model from the same line, which is the most recent entry-level SSD family from Kingston. We will compare it to the SanDisk SSD Plus, also on the 240 GiB version, that we also tested now long ago.
Before proceeding, we highly suggest that you read our “Anatomy of SSD Units” tutorial, which provides all the background information you need to know about SSDs.
The UV400 has, as a highlight, the use of TLC (triple level cell) memories. This kind of memory stores not two, as on most MLC memory chips, but three bits instead. It allows a higher data density and, thus, a smaller manufacturing cost for a same capacity chip.
The issues with TLC memory chips, compared to the two-bit MLC chips (and even more compared to the SLC memory chip, that store only one bit per cell) are the smaller speed (due to the error correcting mechanism) and a shorter lifespan, because there is more cell wearing on the erasing process (executed before writing new data). This makes this model inadvisable for applications that need a big amount of data writing, like servers, for example.
In the table below, we compared the tested units. All of them use SATA-600 interface and the 2.5” form factor, with 7 mm height. All the tested drives have 256 GiB total memory, but they are sold as 240 GiB because 16 GiB are reserved for “overprovisioning”.

Manufacturer

Model

Model #

Nominal capacity

Price

Kingston

SSDNow UV400

SUV400S37/240G

240 GiB

USD 64

SanDisk

SSD PLUS

SDSSDA-240G

240 GiB

USD 70

Prices we researched at Newegg.com on the day this review was published.
In the table below, we compared technical specs of the tested drives.

Model Controller Buffer Memory
Kingston SSDNow UV400 Marvell 88SS1074 256 MiB Nanya NT5CC128M16FP-DI 16x 16 GiB Kingston FT16B08UCT1-0F
SanDisk SSD PLUS Silicon Motion SM2246XT – 4x 64 GiB SanDisk 05446 064G
Continue: The Kingston SSDNow UV400 120 GiB

Storage 240GB,  cheap,  flash,  mlc,  nand,  Reviews,  SanDisk,  SSD,  value

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