Ssd vs hdd

Discussion in 'MacBook Pro' started by gc8express, Jan 6, 2014.

  1. gc8express macrumors newbie

    Jan 4, 2014
    im kinda lost
    yes i know it boots faster
    but what i dont get is the gb ratio

    ex. 120gb ssd vs 500gb hdd

    wouldnt the hdd store more do to higher gb, or am i missing something?
    can someone elaborate more please
  2. 53kyle macrumors 65816


    Mar 27, 2012
    Sebastopol, CA
    Yes, the HDD in your example will store more, but then again, you can buy a more expensive 512 GB SSD and there will be the same storage and much better performance. You could even go even farther and get a 960 GB SSD with MORE storage and better performance than the 500 GB HDD you used as an example.

    SSDs don't just affect boot times, but the entire computer experience. Opening applications like safari will be way faster, copying files will be faster, and even game load times or loading large photo libraries will be faster. On top of that, you will get less to no spinning beach balls and your computer will run cooler.
  3. gc8express thread starter macrumors newbie

    Jan 4, 2014
    so basically the ssd will compress the files smaller?
  4. marc55 macrumors 6502a


    Oct 14, 2011
    I'm wondering what the life expectancy of SSDs are compared to HDDs?
  5. SVT Amateur macrumors 6502

    Dec 22, 2006
    Tyler, Texas
    They should last longer - they don't have moving parts and usually are less prone to shock than regular hard drives.
  6. ecschwarz macrumors 65816


    Jun 28, 2010
    Nope - you just have less storage, but the computer can access the files and generally works faster. It's sort of like cars and gas mileage - a sports car may be more fun to drive and able to go faster, but you're going to go less on a set amount of gas. Something a bit more sensible might take a bit more time to go 0-60 and a little less engaging to drive, but you'll go further with the same amount of gas.

    Unfortunately, hard drives are one o the slowest parts on a computer - an SSD can make a drastic improvement, but it's pricier.
  7. B's iPhone macrumors regular

    B's iPhone

    Jul 9, 2008
    Where it's cold
    SSD's are faster and will definitely improve the user experience.
    This is the first post that I've seen that makes it seem like "gas mileage" will be decreased though. Your battery life should actually be better with an SSD IMO.
  8. ecschwarz macrumors 65816


    Jun 28, 2010
    Yeah - I will agree - the analogy wasn't the best, and not intended to translate to battery life (I know Samsung even advertises it with their drives) - I was getting at that you have to trade capacity for performance, much like with cars you trade gas mileage for performance. Then again, with things like the Tesla you sort of have both (well, equivalent) at a high price...maybe that's like a big, expensive SSD? Either way, I've come to the conclusion the analogy started off good, but ended up quite awful. ;)

    Basically in simplest terms with all drives, you are only able to have two of the three: speed, capacity, and/or price.

    a) Hard drives are slow, high capacity, and cheap
    b) Smaller SSDs are fast, have low capacities, and are cheap
    c) Larger SSDs are fast, have high capacities, and are expensive
  9. CH12671 macrumors 6502

    Dec 29, 2013
    Southern US
    It has nothing to do with file size. If you currently have 250 gb of data on your hard drive, and you try to replace it with a 120 gb ssd, it won't all fit. Same same as far as file size/space. They are essentially the same thing, except one has moving parts and one is solid state (no moving parts). Think of it as a butt ton of RAM, except it doesn't get flushed when you turn your computer off. Everything that is stored on it is very quickly accessible. There is no seek time. You ask for it, and the controller dishes it out. When buying an SSD, you should get one big enough to hold all of the data that you plan on putting on it....don't expect it to magically compress your data into smaller bits, because it won't. OSx has a way to make an SSD and traditional HDD act together, as one disk. It's called a fusion drive (just to add to the confusion some):cool:
  10. Tribbs macrumors newbie

    Nov 27, 2013
    Yes, you are right. 120GB is smaller than 500GB regardless of the storage device.
    You can't fit 500GB into 120GB ;-)

    Exactly. Like trying to put 10Lbs into a 5Lb bag.

    A Lb is a Lb and a GB is a GB
  11. Gav Mack macrumors 68020

    Gav Mack

    Jun 15, 2008
    Sagittarius A*
    I wont have anything but an SSD in any of my Macs for at the very least the boot drive. For an older Macbook Pro it's a total game changer, transforms it's usage totally. It's 15-20 times faster than a slow 5400 rpm drive thats worn out with age even though it may only run SATA2.

    Bear in mind for long life of the drive you should buy the right sized SSD that wont get over 75% full...

    Samsung 840 Evo are great, so is the Crucial M500 but you must upgrade the firmware on the latter to rev 03 as it cures slow Macbook Pro booting.

    Once you go SSD you will never go back to a spinner or even a hybrid.
  12. saturnotaku macrumors 68000

    Mar 4, 2013
    Unless you're going to hammer the drive with writes non-stop for weeks and months on end, there is no need to worry about saving a quarter of the drive's capacity.
  13. bagend12 macrumors newbie

    Jan 4, 2014
    I just transitioned from a mid 2010 15" mbp with a 750 gb HDD to a late 2013 rMBO with a 256 GB SSHD.

    Cutting the HD space by roughly 2/3's was a tough pill for me to swallow, but the presence of the SSHD makes the whole user experience simply incredible. Boot times are very, very fast, programs such as photoshop are very fast, etc...Sure, some of that comes from the new processor in the rMBP, but a lot of that comes from how the SSHD works. Maybe someone with more technical knowledge can chime in on that.

    Like I said, the size and cost of SSHD are still pretty expensive, but when you consider how much faster they make the user experience it is a pretty good trade off. Also, when I took a good hard look at what exactly I had on my 750 gb HDD, over half of what was on there were things I simply did not need..
  14. Jaben3421 macrumors regular

    Sep 18, 2011
    Once you move past the 120GB models you get some crazy life expectancy. Here's AnandTech's rating of the 840 Evo. SSD's will outlast any computer they're put into by a longshot.
  15. thundersteele macrumors 68030

    Oct 19, 2011
    This is 2014. HDDs should only be used as extended storage.
  16. snaky69 macrumors 603

    Mar 14, 2008

    A gigabyte of space, is a gigabyte of space, regardless of what the storage media is. Be it a thumb drive, iPod, SD card, SSD, HDD, you name it, if it has 1GB on the label, it'll contain the very same amount of files.

    If you're trying to replace a 500GB hard drive with a 120GB SSD, you're getting 380GB less capacity, meaning you can store 380GB less data. Period.
  17. Tribbs, Jan 7, 2014
    Last edited: Jan 7, 2014

    Tribbs macrumors newbie

    Nov 27, 2013
    If you're paranoid about Samsung EVO SSD life expectancy (3 year warranty/TLC memory chips) buy instead the Samsung PRO SSD (5 year warranty/MLC memory chips). Arguably the PRO's MLC memory chips will last longer and the 5 year warranty...

    Life expectancy (estimated):
    MLC memory (PRO) 60.12 years
    TLC memory (EVO) 19.57 years
  18. Micky Do macrumors 68000

    Micky Do

    Aug 31, 2012
    An island in the Andaman Sea.
    A 120 GB drive will hold about 120 GB of data. SSD or HDD is irrelevant.

    An SSD will be faster in use, have a far greater life expectancy than a HDD, and take up less physical space in a computer, albeit at price.

    That being said, SSD's have been become more affordable relative to HDD over the years, hence………..

    How long will it be before the HDD goes the way of the floppy disc?

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