what hard drive is limiting what?

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delobe

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Apr 7, 2014
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hi, i have an intel 750 pcie ssd, and a sata ssd.

i decided to install the OS onto the sata ssd, because of faster boot times, and all my applications on the intel 750.

the question is am i limiting the speed of my applications by having the OS on the sata ssd. or should i not waste the money of the intel 750 and reinstall the OS onto it and deal with the slightly slower boot times? i was just very interested to know if i wasn't getting the speed out of the 750 by having the applications on it but the OS on the slower sata ssd?

thank you!

sorry about the capital letters and punctuation..... laptop keys not working, using symbols.
 
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USAFRet


No.
Once the OS is up and running (on a 'slower' drive), the application living on a 'faster' drive will work at whatever speed that faster drive does.

For instance....if you had the OS on an HDD, and applications on an SSD...the applications would (mostly) operate at SSD speed.
Now...of course there is some interaction between the OS and the application, so it would be a touch slower than...
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USAFRet

USAFRet

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Mar 16, 2013
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I doubt you'll see any actual difference either way you do it.

Booting the OS and opening/running applications uses small, random chunks of data. And there isn't a whole lot of actual performance difference in that use.

Boot time? OK, maybe a second or two difference. Big deal.
 
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delobe

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Apr 7, 2014
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Technically, if the applications are on a different faster drive than the OS, are they technical limited by the slower OS drive?

That is what I really wanted to ask. I know, people say all the time big deal etc. etc. I want to understand technically whether storage works in such a way, and what limits what, not some relative answer.

Thanks
 
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USAFRet

USAFRet

Titan
Moderator
Mar 16, 2013
171,418
17,886
184,590


No.
Once the OS is up and running (on a 'slower' drive), the application living on a 'faster' drive will work at whatever speed that faster drive does.

For instance....if you had the OS on an HDD, and applications on an SSD...the applications would (mostly) operate at SSD speed.
Now...of course there is some interaction between the OS and the application, so it would be a touch slower than true SSD performance, when the OS had to do something from the drive. But not a lot.
And don't configure the system like that.

But the actual difference between those two SSDs? In a blind test, you'd need an accurate stopwatch to tell which way it was configured.
 
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