titleWhen you hear the word Hybrid you may have images of Prius’s or maybe even the south park episode where they called all Hybrid owners fart sniffers. You may be surprised to find out that you can get hybrids in the computer industry, specifically in storage. With SSD’s gaining popularity it’s not a surprise that manufactures are looking at ways to bring SSD performance with a normal hard drives capacity and price. Today I have the chance to take a closer look at the Momentus XT from Seagate. This is a 2.5inch laptop drive with 4 gigs of SLC NAND (solid state flash) attached to the PCB to give you just that.

Product Name: Seagate Momentus XT

Review Sample Provided by: Seagate

Review by: Wes

Pictures by: Wes

momentusxt_3

Specifications

Speci?cations

500GB

320GB

250GB

Model Number

ST95005620AS

ST93205620AS

ST92505610AS

Solid State Memory, SLC NAND (GB)

4

4

4

Interface

SATA 3Gb/s NCQ

SATA 3Gb/s NCQ

SATA 3Gb/s NCQ

Cache (MB)

32

32

32

Con?guration

 

Bytes per Sector

512

512

512

Reliabilty/Data Integrity

 

Head-Rest Method

QuietStep™ Ramp Load

QuietStep™ Ramp Load

QuietStep™ Ramp Load

Load/Unload Cycles

>600,000

>600,000

>600,000

Nonrecoverable Read Errors per Bits Read

1 per 10E14

1 per 10E14

1 per 10E14

Power Management

 

Power (W)

 

 

Seek, Typical

1.554

1.554

1.554

Idle, Typical

0.8

0.8

0.8

Environmental

 

Temperature (°C)

 

 

Operating

0 to 60

0 to 60

0 to 60

Nonoperating

?40 to 70

?40 to 70

?40 to 70

Shock (Gs)

 

 

Operating: 2ms

350

350

350

Nonoperating: 1ms

1000

1000

1000

Acoustics (bels—sound power)

 

 

Idle, Typical

2.3

2.3

2.3

Seek, Typical

2.5

2.5

2.5

Physical

 

Height (in/mm)

0.370/9.5

0.370/9.5

0.370/9.5

Width (in/mm)

2.75/69.85

2.75/69.85

2.75/69.85

Depth (in/mm)

3.951/100.35

3.951/100.35

3.951/100.35

Weight (lb/g)

0.238/110

0.238/110

0.238/110

 

About Solid State Hybrid Technology

Anyone can add a few gigs of SLC NAND to their hard drive and call it a hybrid making everything work together is where it’s at. Seagate created what they call Adaptive Memory technology that maintains the 4 gigs of NAND. The Adaptive Memory figures out the files you use the most and copy’s them over to the much faster SSD portion. This means that you get SSD performance on files that you use the most, but you don't waste the expensive NAND on files that you may only access once in a blue moon.

momentusxt_4

Our Test Rig

Intel i5 661
Gigabyte GA-EXS8-UD4P
8 gigs of DDR3 Crucial Ballistix Tracer Ram
Cooler Master Silent Pro M 850 PSU
OCZ Agility SSD
DVD Burner
Gelid Solutions Tranquilo heatsink
and it currently has a 5770 in it (not pictured)

momentusxt_1

Performance

Because of the Momentus XT’s unique design I had to try out a few new tests to try to show how it can help you. Of course, I still used our normal tests also. Here are our results.

graph1

graph2

graph3

graph6

graph5

You can see on most of our normal tests the Momentus doesn’t really shine, the reason for this is the adaptive memory needs to see a file used multiple times before it starts to move them over. In this case our tests use random files. Our random access test does show the Adaptive Memory, but my first result was in line with the other hard drives. I made a graph of my results while testing using PCMark Vantage’s hard drive tests. Over the six tests, you can see the performance improvement.

momentusxt_5

Even those tests don’t really show off the drives real world performance. With windows installed, the boot times jumped from a first time boot of 26 seconds to 16on second boot, and 15 on 3rd. A quick glance at customer reviews posted on a popular retail website shows that some people are experiencing noisy drives; our test drive did not have this issue. The vibration level was in line with the 5200-RPM drive used in my laptop.

momentusxt_2

Overall

So you can see a performance increase with your most used files without having to pay the premium that SSD’s currently go for. It’s obvious that this will be the technology that we see filter into our larger drives. Of course, write speeds are no different than current 7200RPM drives. I can’t wait to see this technology mature and move into 3.5 inch drives. I would love to see one with 10 to 20 gigs of adaptive memory to go with a much larger disc drive. At that size, Seagate could have everything write to the SSD and the adaptive memory could move the files that don’t get used to the slower disc drive. In that configuration, we would see SSD performance in our tests, and more often in day-to-day activities. That’s not saying you shouldn’t check this out now, the price for this kind of performance is amazing when compared to current generation SSD’s. This drive will no doubt find its way into use in one of our test rigs or laptop.

xtsilver

 

 

Author Bio
garfi3ld
Author: garfi3ldWebsite: http://lanoc.org
Editor-in-chief
You might call him obsessed or just a hardcore geek. Wes's obsession with gaming hardware and gadgets isn't anything new, he could be found taking things apart even as a child. When not poking around in PC's he can be found playing League of Legends, Awesomenauts, or Civilization 5 or watching a wide variety of TV shows and Movies. A car guy at heart, the same things that draw him into tweaking cars apply when building good looking fast computers. If you are interested in writing for Wes here at LanOC you can reach out to him directly using our contact form.

Posted: 1 year 1 month ago by Wingcmdr77 #33122
Wingcmdr77's Avatar
Partially on your recommendation from two years ago, I remembered you discussing ways to extend the life of an older laptop, well I'm just waiting to get my in the mail. I couldnt see spending the money on and SSD on a 4 year old laptop, and go with a slow 5400 rpm with a huge storage capacity, so this is going to be the OS and programs drive while the laptop has a dual bay I use that spare for data storage on a slow 5400.

With the hope in the near future to be either another one of those in the 2nd bay or a 7200 so that the performance level across drives will be normalized some what.

 

We have 486 guests and 5 members online

300x250-All V3

rsssteam 

channel.png
LanOC
home.png

channel.png
Team 1

channel.png
Team 2

channel.png
Looking To Play

channel.png
Highwayshark
locked.png

channel.png
CS:GO

channel.png
Diablo III

channel.png
FFXIV

channel.png
Dota 2

channel.png
LoL

channel.png
Minecraft

channel.png
World of Warcraft

 
channel.png
Group A

 
channel.png
Group B

channel.png
The Vapor Chamber

channel.png
AFK

 
client_player.png
Lersar1
 
client_player.png
Garfi3ld
 
client_player.png
AweSam

Our Server Info: ts.lanoc.org