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Seagate Momentus 7200.5 (750 GB, ST9750420AS)

Three 7200 RPM Notebook Hard Drives For 2011
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The fifth-generation Momentus currently is the highest capacity 7200 RPM noteook drive on the market. We find it interesting to see that manufacturers are picking certain segments where they choose to engage more vigorously than others. This drive is a good example. Another example is the race to 2.5” 1 TB drives using a 12.5 mm Z-height or the effort to hit 3+ TB capacities.

The Seagate drive has 16 MB cache memory, but at 115 g it is slightly lighter than the Samsung drive and heavier than WD’s 111 g. Seagate also specifies a 0-60°C operating temperature range, while Samsung stays at 5-55°C. An access time of 15 ms is typical, but Seagate strikes hard at the throughput tests. Although it has to admit defeat in peak throughput, it shows the highest average throughput result at 91.9 MB/s and it does great in our streaming read/write testing. We also measured nice I/O performance numbers that qualify the drive for heavier workloads. Unfortunately, this performance is not reflected in PCMark Vantage, where we found a few sections in which the new Seagate drive doesn't perform as well.

The specifications declare 0.96 W idle power and 2.5 W seek power. Our 0.9 W idle power measurement and 2.6 W at workstation type I/O is very close to what Seagate says. These results are pretty good in comparison and should help the Momentus 7200.5 to deliver strong power efficiency. You’ll find those results in the benchmark section as well.

Momentus 7200 drives come with a three-year warranty.

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  • -4 Hide
    apache_lives , January 27, 2011 6:49 AM
    7200rpm..... speed for these devices doesnt really matter at all anymore - its either SSD, or it aint (performance wise)
  • -1 Hide
    amk09 , January 27, 2011 7:57 AM
    I have the spinpoint mp4 and am very happy with it.
  • 1 Hide
    JohnnyLucky , January 27, 2011 10:18 AM
    Interesting report. You're right, $200 or more for a fast ssd is too expensive for most pc users. For the time being I have a difficult time justifying the cost.
  • 0 Hide
    cknobman , January 27, 2011 12:53 PM
    Regardless of how fast the 7200 rpm hard drives are I have absolutely no plans of ever buying one of these (unless I come across the rare situation where I just have to have huge file storage capabilities for my laptop that cannot go on my file server).

    I can and will wait until the cost of a 128GB SSD is $1/GB (needs to be one with a good controller not some crappy jmicron controller).

    So until the day comes I will just sit and wait.
  • 1 Hide
    dgingeri , January 27, 2011 1:33 PM
    Well, I can assure you that the caviar black is available in 750GB capacity.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16822136835

    I have been considering replacing my 3 750GB 3.5" drives with 4 7200rpm laptop drives for better performance with lower power requirements. Would you guys ever do a story on such things? The Samsung looks promising for this purpose. I know the server space is going this way for the same reasons. Why wouldn't desktop DIY go the same way?
  • 0 Hide
    dgingeri , January 27, 2011 1:34 PM
    oops, the post above should be Scorpio Black in 750 capacity.
  • 0 Hide
    oxxfatelostxxo , January 27, 2011 1:59 PM
    Quote:
    7200rpm..... speed for these devices doesnt really matter at all anymore - its either SSD, or it aint (performance wise

    Hmm is that the case... So lets say someone has a ton of games music and movies, you actualy think its viable to use ssd's?

    Ill take my hardware raid 5 of 4- 2tb drives anyday for all my storage needs( which btw puts out more than most ssd's). SSD's only are really viable as a OS drive for the cost,
    Not to mention nobody needs over 300mb/s for a video game/movies or music. Only thing that needs that kind of output are professional programs
  • 0 Hide
    dgingeri , January 27, 2011 2:03 PM
    oxxfatelostxxoHmm is that the case... So lets say someone has a ton of games music and movies, you actualy think its viable to use ssd's?Ill take my hardware raid 5 of 4- 2tb drives anyday for all my storage needs( which btw puts out more than most ssd's). SSD's only are really viable as a OS drive for the cost, Not to mention nobody needs over 300mb/s for a video game/movies or music. Only thing that needs that kind of output are professional programs



    The big difference there is access time. Believe me, WoW loads up faster from my single Vertex 120GB drive (at 200MB/s) than it does from my 3X 750GB Caviar Black raid array (300MB/s). The system boots in about the same amount of time (about 15 seconds) with either, so I use the raid array for my boot drive, but my games are loaded on my SSD.
  • 0 Hide
    utengineer , January 27, 2011 2:35 PM
    cknobmanI can and will wait until the cost of a 128GB SSD is $1/GB (needs to be one with a good controller not some crappy jmicron controller). So until the day comes I will just sit and wait.

    Be prepared to wait a long, long time. As long as hard drives are manufactured, SSD pricing is not going to go down much more. Come back in about 5 years and NAND + latest controller might net you $1/GB on a retail SSD.
  • 0 Hide
    masterasia , January 27, 2011 3:33 PM
    I'm surprised by the Seagate XT hybrid. It sucks.
  • 0 Hide
    noblerabbit , January 27, 2011 4:26 PM
    Which one of these puppies should I slap into my PS3? However, I am contemplating on just putting an OCZ 90GB SSD for quicker access to the sludging GT5 game. I don't care for space, I want improved performance over the current fat 60GB drive in there.
  • 0 Hide
    LordConrad , January 27, 2011 6:08 PM
    noblerabbitWhich one of these puppies should I slap into my PS3? However, I am contemplating on just putting an OCZ 90GB SSD for quicker access to the sludging GT5 game. I don't care for space, I want improved performance over the current fat 60GB drive in there.

    Even the modern 5400rpm drives will be faster than the original 60GB drive from the PS3. With a PS3 fat I wouldn't use a 7200rpm anyways, 5400rpm or SSD only for temperature and fan noise reasons.
  • 0 Hide
    WR2 , January 27, 2011 6:17 PM
    Most of the time a HDD/SDD just needs to be fast enough to load data/files/programs into RAM before it's needed by the system. Getting a few extra seconds faster boot or game level upload isn't that important to most people to justify the premium cost of a SSD.
  • 0 Hide
    mikem_90 , January 27, 2011 10:22 PM
    dgingeriWell, I can assure you that the caviar black is available in 750GB capacity.


    Yeah, the story that they were released was a few weeks ago (Jan05 2011). It seems though to ask for drives to review might have taken a bit of time from the testing and review of the hardware though.

    3 weeks is not insubstantial, but they might want to have updated the story "750gb was not available at the time of testing".
  • 0 Hide
    alextheblue , January 28, 2011 3:08 AM
    What firmware are you using with the XT drive?
  • 0 Hide
    oxxfatelostxxo , January 28, 2011 3:18 AM
    Quote:
    The big difference there is access time. Believe me, WoW loads up faster from my single Vertex 120GB drive


    Ive played wow, loading off a single WD black drive, and load time were very small even with that, Shaving 2 seconds off a already low load time just doesnt matter to me.

    So unless that small 1-2 seconds really matter to you, having a hdd raid array is a much better solution, as i dont see the fast access time dropping a already low load time that much lower.

    Also (thanks to steam) the amount of games i have just isnt suited to using a small ssd drive.
  • 0 Hide
    tmc , January 29, 2011 12:34 AM
    One point, slightly less than 90% of laptop owners dont' upgrade/replace the original drive.
    Also, FYI.. netbooks won't see a 320gb drive let along 640 or 750gb in 2011.
  • 1 Hide
    BulkZerker , January 29, 2011 11:03 PM
    soldier37Lets see 12 second boot time versus 1 min 20 second. First to load in online games or middle of the road to last. 2 seconds to load Photoshop versus 7-10 seconds. I'll take the SSD route thanks. 355 Write 275 read speeds owns mechanical drives all day long, cost more yeh but I can do that. 7200 rpm drives are falling by the wayside except for your casual ignorant pc users..ie people that buy their PCs at Walmart and only browse the net and email.


    Must be nice to have Daddy's gold card to pay for your spending habits.

    Owning a 150GB WD raptor and a 640 Cav Black here I can say that a 20sec boot time (once i get past ASUS's retarded long boot up sequence) to desktop with Win 7 on the Raptor, vs 12 seconds isn't going to warrant me to switch over any time soon on that front. Also how many games does it honestly matter loading the level first when there's a 30 - 60 round start timer? (Anyone that plays BAD company 2, Black ops, TF2, DoW2, ect can vouch for this. Either you wait or you wait for the timer to expire or the map to load and have 5 sec on the timer to wait out.)

    SSDs are great, but the price is still steep as hell for one compared to a RAID array.

    Oh and BTW Kingstons 16 GB SSD is heaven for a cheap netbook upgrade.
  • 0 Hide
    Anonymous , February 3, 2011 1:25 PM
    Yeah, except it is hard to jam a raid array into your notebook.

    I want a conventional 750GB 7200RPM drive with 40-60GB of SSD built into it that appears as a single drive partitioned into a 40-60GB partition and a 750GB partition.

    That way my OS and core apps (Adobe products and 3DS Max) can go into the SSD part and the apps into the traditional HDD and I only need one drive in my laptop, rather than having to remove the optical drive or have an external HDD. The momentus XT is pointless, give it 40GB or SS and I'll bite.
  • -1 Hide
    toughbook , February 8, 2011 1:37 AM
    All you have to do is use a SSD for 30 minutes and you WILL find the money and lose the jealous attitude of not having one. I have been an SSD user of many different brands and sizes for quite some time. It's almost like walking 5 miles with a set of ankle weights on, the doing the same without the weights. You will ask yourself how did I ever do those 5 miles, and I for sure won't be doing it again.
    Stop going out to dinner at 50.00 to 75.00 bucks each week and you could get a SSD, or simply manage your money better, or get a better job. I cant stand the people that pipe up about how they will never have a SSD or find ways to justify them not having one.
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