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Seagate 500GB Momentus XT Solid State Hybrid Hard Drive Review
Seagate 500GB Momentus XT Solid State Hybrid Hard Drive Review - PCSTATS
Abstract: Seagate's Momentus XT is a 2.5" notebook drive of a half-Terabyte in capacity that stands out from the crowd because it contains 4GB of SLC NAND flash.
 75% Rating:   
Filed under: Hard Drives/SSD Published:  Author: 
External Mfg. Website: Seagate Jun 12 2010   Max Page  
Home > Reviews > Hard Drives/SSD > Seagate Momentus XT

HDD Benchmark: File Transfer & Conclusions

File Copying

For this test a single 8.5GB file is copied from an OCZ Vertex 2 SSD system disk to the test disk (write to), from the test disk to the OCZ Vertex 2 SSD (read from), and from the test disk to itself (read and write to self). While this test is heavily influenced by the SATA controller and by the number of files being transferred, it provides a good indication of the sustained transfer rates capable from the hard drive being tested. Higher transfer speeds are best.

PCSTATS Benchmark ReportLarge File Transfer Test - 8.5GB Single File
Avg. Speed: Write To: (MB/s) Points Ranking
OCZ Vertex 2 128GB SSD 56
Plextor PX-128M1S SSD 51
Seagate 2TB Barracuda XT HDD 51
Seagate 500GB Momentus XT SSHD 39
Avg. Speed: Read From: (MB/s) Points Ranking
OCZ Vertex 2 128GB SSD 49
Plextor PX-128M1S SSD 63
Seagate 2TB Barracuda XT HDD 58
Seagate 500GB Momentus XT SSHD 45
Avg. Speed: Read / Write To Self: (MB/s) Points Ranking
OCZ Vertex 2 128GB SSD 60
Plextor PX-128M1S SSD 48
Seagate 2TB Barracuda XT HDD 51
Seagate 500GB Momentus XT SSHD 36

Just a quick and fun test to gage real world impact on large file copying and pasting - a common and not very intensive task. Across the board, Seagate's 500GB Momentus XT posts relatively slow transfer rates of between 36 - 45 MB/s, interesting.


The 500GB Seagate Momentus XT drive contains 4GB of SLC NAND flash and operates on a 3Gb/s SATA II interface, yet as we consider the merits of this Solid State Hybrid Drive it's hard not to be persuaded by the marketing materials and use of the polysemous term; 'hybrid'.

As everyone knows, hard drives offer low cost per GB of data storage while Solid State Drives are incredibly fast. In the imagined hybrid scenario, the best of both worlds are combined equally to yield a low cost, yet incredibly fast device. In the real world, the hybrid 500GB Seagate Momentus XT is economical compared to the potential cost of a 500GB SSD... but only absorbs the speed qualities of an SSD in a very, very narrow usage scenario.

As the hard drive benchmarks have demonstrated, the Seagate Momentus XT offers comparably good performance for a HDD, but both SSD's it was compared against are far quicker in the bulk of tests. The Momentus XT can yield like-SSD read responsiveness to frequently used applications, but this only when the situation suits it.

Application specific benchmarks see a noticeable improvement after multiple iterations, unlike an SSD which brings about an instant enhancement along with its high up front cost. The 500GB Momentus XT's write speed is limited to the speed of the hard drive component (which is good for a HDD), there's no way around this with current hybrid drive designs.

In its current form, Seagate's hybrid technology is mixed bag. While the 4GB SLC NAND cache is completely transparent to the computer allowing the drive to be used on any hardware platform regardless of operating system, it's real world implications are limited to client computers where the same couple office tasks are apt to be repeated. As we saw with PCMark Vantage HDD test suite, the benefit is there, and it will result in snappier response times. In this respect the Seagate Momentus XT is a novel way to improve system responsiveness in a notebook computer, but at the same time we can't help but feel that the benefit remains somewhat unquantifiable.

Bottom line, if you have the option to build a new notebook with the Seagate 500GB Momentus XT, go for it. If you have an existing notebook and want to replace its hard drive for a SSHD, you can expect a little uplift here and there, but temper your expectations.

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< Previous Page © 2022 PCSTATS.com Hard Drives/SSD Reviews...»


Contents of Article: Seagate Momentus XT
 Pg 1.  Seagate 500GB Momentus XT Solid State Hybrid Hard Drive Review
 Pg 2.  HDD Benchmarks: HDTune Pro Read / Write
 Pg 3.  HDD Benchmarks: PCMark Vantage
 Pg 4.  HDD Benchmarks: SiSoft Sandra Read / Write
 Pg 5.  HDD Benchmarks HD Tach
 Pg 6.  — HDD Benchmark: File Transfer & Conclusions

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