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Seagate 600 SSD review: Ultrathin, versatile and fast

Seagate's first solid-state drive for consumers is also the first on the market that's available in both 7mm and 5mm thicknesses. The drive offers fast performance at, hopefully, competitive pricing.

Dong Ngo
Dong Ngo SF Labs Manager, Editor / Reviews
CNET editor Dong Ngo has been involved with technology since 2000, starting with testing gadgets and writing code for CNET Labs' benchmarks. He now manages CNET San Francisco Labs, reviews 3D printers, networking/storage devices, and also writes about other topics from online security to new gadgets and how technology impacts the life of people around the world.
5 min read

The Seagate 600 SSD is a major addition to the solid-state drive market. The drive is the first consumer-grade SSD to come from Seagate, which, prior to this, offered general consumers only regular platter-based storage solutions.

The 5mm and 7mm versions of the Seagate 600 SSD.

Seagate 600 SSD

The Good

The <b>Seagate 600</b> SSD offers fast performance and is available in the new ultrathin 5mm thickness.

The Bad

The new SSD requires the same power as a regular laptop hard drive, its current estimated cost is comparatively high, and there's no 3.5-inch drive-bay caddy included.

The Bottom Line

The Seagate 600 is an impressive first SSD outing from Seagate that offers basically all you want in a solid-state drive.

It's also the first SSD that's available in both 7mm and 5mm designs, making it the most versatile SSD option. The drive can fit in a whole range of applications, from regular desktops to laptops, to many ultrabooks, and possibly some future tablets.

In my testing, the new drive offered very fast performance, proving itself to be a great alternative to even the speediest hard drive, and even faster than many other SSDs on the market.

On the downside, the 600 SSD has the same power consumption as a regular 5,400rpm laptop hard drive and comes with very high suggested retail price of $330 for 240GB (or $600 for 480GB, and $200 for 120GB). As with most new SSDs, though, the actual street price should be much lower when the drive actually ships early next month.

If you can wait until then, the Seagate 600 SSD will surely make an excellent buy. Otherwise, check out the alternatives on this list, which are available now.

The 5mm and 7mm versions of the Seagate 600 SSD.
The 5mm and 7mm versions of the Seagate 600 SSD. Dong Ngo/CNET
Drive type 5mm- or 7mm-thick, 2.5-inch standard internal solid-state drive
Connector options SATA 3 (6Gbps), SATA 2, SATA
Available capacities 120GB, 240GB, 480GB
Product dimensions 2.5-inch standard
Capacity of test unit 480GB
Controller Link A Media Device’s LM87800
Flash memory type
19nm Toshiba 2-bit-per-cell MLC NAND
OSes supported Windows, Mac, Linux

First standard 5mm design
The Seagate 600 SSD uses the standard 2.5-inch laptop design but is available in two thicknesses, 7mm and 5mm. While the 7mm is currently the most popular thickness for SSDs, the 5mm thickness is newer and was first introduced in the WD Blue hard drive. This design is made for ultrathin devices, including ultrabooks and future tablets.

The difference in thickness doesn't affect the drive's capacities or performance. Each of the two thicknesses is available in three capacities -- 120GB, 240GB, and 480GB -- with exactly the same performance ratings. The 240GB and 480GB capacities are able to offer up to 500MBps and 400MBps in sequential reading and writing, respectively. They offer random read and write speeds of up to 80K-IOPS (input/output operations per second) and 70K-IOPS, respectively. The 128GB capacity, however, has a slightly slower write speed rating of 300MBps for sequential writing and up to 60K-IOPS in random writing.

The 7mm version of the Seagate 600 SSD.
The 7mm version of the Seagate 600 SSD. Dong Ngo/CNET

As with all new internal drives, the Seagate 600 SSD supports the latest SATA 3 (6Gbps) and comes with the standard SATA connector. This means the new SSD can be used in any situation where a standard SATA hard drive is used. It doesn't comes with a 3.5-inch drive-bay converter, however, which would make it easier to install in a desktop. This is not a deal-breaker, however, since you can just leave the drive hanging loose inside a computer chassis. Having no moving parts, SSDs don't need to be attached securely to the chassis to work properly. You can also buy a drive-bay caddy from a third party.

On the inside, the new 600 SSD uses Link A Media Device's LM87800 SSD controller, the same controller used in the high-end Corsair Neutron GTX. For storage, the drive uses 19nm Multi-Level Cell NAND flash memory from Toshiba. The drive uses Seagate's firmware, however, and supports the latest "on-the-fly error-correction algorithms." It also supports Native Command Queuing and Data Set Management with TRIM. (Read more about solid-state drives and the TRIM command here.)

According to Seagate, the 600 SSD can be used exactly the same way as any Seagate 2.5-inch standard hard drive, but it should be used with Windows 7 (SP1) or Windows 8 to ensure the proper use of the TRIM functionality. In my trials, the drive also worked with Linux and Mac OSes. It's unclear how well TRIM is supported on a Mac, however.

Hard-drive-like power consumption
The new 600 SSD consumes about the same amount of power as a regular 5,400rpm hard drive. It requires about 950mA on startup and about 4W maximum power during operation and about 1W when idle.

For a desktop this is not a big deal at all, but for a portable system, this won't help with battery life. To be fair, the 600 SSD still uses much less energy than other SSDs on the market, though it's also significantly less energy-efficient than those from Intel, OCZ, and especially Samsung. The Samsung 830 series, for example, uses just 0.24W during operation and 0.14W when idle; the Samsung 840 series uses even less.

The ultra-thin 5mm version of the Seagate 600 SSD.
The ultrathin 5mm version of the Seagate 600 SSD. Dong Ngo/CNET

"Competitively priced"
The Seagate 600 SSD comes with very high suggested retail price of around $200 for 120GB, $330 for 240GB, and $600 for 480GB. Seagate assures me that when the drive starts shipping, its street price will be very "competitive." Considering most SSDs now cost around $1 per gigabyte, you might expect the 600 SSD to cost about the same.

I tested both the 5mm and 7mm versions of the 480GB Seagate 600 SSD, and the two versions offered the same performance, which is very good.

As a secondary drive, the Seagate 600 SSD offered the real-world sustained write speed of 259MBps, which is above average among all SATA 3 SSDs. In the reading test, it did better with 275MBps, ranking it second fastest just after the 278MBps of the OCZ Vector.

When used as the main drive that hosts the operating system and performing both writing and reading at the same time, the Seagate 600 SSD offered the sustained speed of 137MBps.

The drive markedly helped improve the overall performance of the computer. The test system took just about 11 seconds to boot up and about 5 seconds to shut down, much faster than when it used a hard drive as its main storage. The computer also awoke from sleep mode instantly. Applications are loaded much more quickly. Compared with other high-end SSDs, however, the Seagate 600 SSD was about the same. Since SSDs are generally very fast compared with standard hard drives, it's hard to quantify the difference between them when it comes to the overall performance of a computer.

One thing I noted about the Seagate 600 SSD is that in some ways it behaved very similarly to a standard hard drive. For example, it takes about the same time to be formatted as a hard drive. Most other SSDs generally took a little longer to be quick-formatted.

CNET Labs' Boot/Shutdown Scores
(In seconds; shorter bars indicate better performance)
Boot time  
Seagate 600 SSD
Samsung 840 Pro
Samsung 840 series
Plextor M5 Pro
SanDisk Ultra Plus
OCZ Vector
CNET Labs' Data transfer scores
(In Mbps; longer bars indicate better performance)
As secondary drive (read only)  
As secondary drive (write only)  
As OS drive (read and write)  
OCZ Vector
Seagate 600 SSD
Plextor M5 Pro Xtreme
Transcend SSD720
Corsair Neutron GTX
Samsung 840 Pro
Plextor M5 Pro
SanDisk Ultra Plus

Seagate is one of the largest storage vendors, and the release of the 600 SSD signifies that solid-state storage has become a mainstream alternative to regular hard drives. A little late to the solid-state game, Seagate has done a good job nonetheless with the 600 SSD, which has proven to be a fast and versatile internal storage device.

The 5mm and 7mm versions of the Seagate 600 SSD.

Seagate 600 SSD

Score Breakdown

Setup 8Features 8Performance 8Support 9
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