Samsung packs more speed, endurance into 850 Evo consumer SSDs

Samsung 850 Evo SSDs range in capacity from 128GB to 1TB, with prices from $US129.99 to $US659.99

Samsung's 850 Evo SSD (1)

Samsung's 850 Evo SSD (1)

Samsung is promising faster, more durable and error-free solid-state drives with 850 Evo, which are its first consumer storage devices based on homegrown 3D memory technology.

The 850 Evo will come in storage capacities of 128GB ($US99.99), 250GB ($US149.99), 500GB ($US269.99) and 1TB ($US499.99). The drives, which will be available later this month, can be plugged into SATA storage slots in laptops and desktops.

The biggest advance in 850 Evo is the use of 3D V-NAND memory technology, which gives the drives more speed and durability than predecessors like the 840 Evo. The SSDs have storage units stacked on top of each other. That's a more power-efficient and speedy structure compared to the 840 Evo, in which storage units were placed next to each other.

The 850 Evo SSDs is two times more durable than the 840 Evo, said Richard Leonarz, senior marketing manager at Samsung.

The durability is based on the amount of data written to the SSD. Samsung estimates the 850 Evo durability to be 150TB of data written to the SSD, compared to 75TB for the 840 Evo models.

The speed improvements are best reflected in the random write speeds of the lower capacity 120GB and 250GB models. The lower-capacity SSDs have fewer data transfer channels, and a Samsung benchmark measures the random write speed at 88,000 IOPS (input/output per second), compared to 35,000 IOPS on the 840 Evo 120GB model, and 66,000 IOPS for the 250GB model.

Samsung has enhanced its buffer technology called TurboWrite to speed up writing of data blocks on the SSDs.

The 90,000 IOPS write speed on the higher-capacity 500GB and 1TB models are about the same as predecessors. The random read speeds of the 850 Evo SSDs are between 94,000 and 98,000, also in the same range as previous versions.

The 850 Evo sequential read speed is 540 megabytes per second and the write speed is 520 megabytes per second. That's also similar to the 840 Evo, according to Samsung's specifications.

Samsung has also addressed some read issues affecting 840 Evo users. The new technologies in 850 Evo bring better error correction to the drives, which should keep the reads and speeds stable, Leonarz said.

The V-NAND first appeared in Samsung's enterprise SSDs, but more consumer drives will now be based on the technology, Leonarz said.

Agam Shah covers PCs, tablets, servers, chips and semiconductors for IDG News Service. Follow Agam on Twitter at @agamsh. Agam's e-mail address is agam_shah@idg.com

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Tags SSDDrivesstorageSamsung Electronics

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Agam Shah

IDG News Service
Show Comments

Cool Tech

Crucial Ballistix Elite 32GB Kit (4 x 8GB) DDR4-3000 UDIMM

Learn more >

Gadgets & Things

Lexar® Professional 1000x microSDHC™/microSDXC™ UHS-II cards

Learn more >

Family Friendly

Lexar® JumpDrive® S57 USB 3.0 flash drive 

Learn more >

Stocking Stuffer

Plox Star Wars Death Star Levitating Bluetooth Speaker

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest News Articles

Resources

GGG Evaluation Team

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell

LIFEBOOK UH574

The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi

STYLISTIC Q702

The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott

STYLISTIC Q702

My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?