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Questions regarding USB3 speeds vs a HDD and buying more space.

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November 28, 2013 5:04:23 PM

So my problem is that my about 3 year old HDD is slowly beginning to show its age and its keeping horrendous moving noise inside my case which is fairly annoying overtime when certain games make it rumble for a good 20 seconds to 2mins.
I cant afford a new HDD as of now but i do have this external USB3 HDD that i could use and its silent as the wind.

My question:

Is USB3 noticably slower than a HDD? I dont mind it if need to wait a few more seconds when loading a level in a game, but say i was moving a big chunk of data around or copying files in the USB3 HDD, would the times be MUCH longer then?



Also on the same subject, a friend of mine is buying this: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

What exactly is special in it from a regular HDD? I just understood its faster?
Im also probably going to get a 240gig ssd for my games next summer so should i just wait till then and just get the SSD or would the HDD/SSD above be anywhere as fast?

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a b G Storage
November 28, 2013 5:10:30 PM

USB3 is more than enough bandwidth for any current HDD. in fact, most hard drives can only use up about 30% of the USB3 bandwidth.

specifically: USB3 = 500MB/s, most HDD = 150MB/s or less. nope, USB3 is NOT a bottleneck here.

SSHD - i know very little about it, but it seems like a niche product that was best suited to laptop computers before large (256+) SSDs became readily available at not-ridiculous prices. i'd skip it. it strikes me as a solution to a problem that is no longer a problem due to basic progress.
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a c 888 G Storage
November 28, 2013 6:29:13 PM

SSHD have a SSD portion that is used to cache frequently read data. The cache is 8gb on most of them which is more than enought to cache the boot files and a few apps. Other than that its no different than a regular harddrive. They make nice boot drives if you don't want the hassle or expense of a dedicated SSD.

With USB3 just remember that you only run at the speed of the slowest link. Plug the drive into a usb2 port or use a usb2 cable and you'll be at usb2 speeds no matter what.
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November 29, 2013 2:24:20 AM

Thanks for the answers. I have a 120gig ssd for my windows and everything else not game related so i presume ill just skip the SSHD totally and get the 240gig next summer?

Edit: Also would it be safe to store some photos etc in the old HDD if its unplugged and hidden in some box? the 500g USB3 one has some in it and i would need to clear them out probably.
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a c 104 G Storage
November 29, 2013 3:55:27 AM

USB3 wont bottleneck a HDD in terms of raw bandwidth, though it will still be outperformed by a SATA interface. USB on the software/driver end is more oriented to random read/writes while SATA is much more Sequential.

The drive is already failing, so I wouldnt trust it too hold anything you want to keep. Even if its not spinning during the time that's no guarantee it will work when you plug it in in 6months. I would back up your pictures either to another external drive or CD/DVD's.
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November 29, 2013 4:45:00 AM

manofchalk said:
USB3 wont bottleneck a HDD in terms of raw bandwidth, though it will still be outperformed by a SATA interface. USB on the software/driver end is more oriented to random read/writes while SATA is much more Sequential.

The drive is already failing, so I wouldnt trust it too hold anything you want to keep. Even if its not spinning during the time that's no guarantee it will work when you plug it in in 6months. I would back up your pictures either to another external drive or CD/DVD's.


Okays, ill try to figure something out then, thanks for all the replies!

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