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Hard disk speed comparison

muzzammil13
By muzzammil13
in Storage Devices
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I would love to know the difference between SATA 6 gb/s and SATA 3 gb/s

 

 

I don't quite understand the concept

 

because new HDD gives you about 80-100 mb transfer/s

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Faster

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Hard drives really don't need SATA III 6Gb/s, they can't even use all the speed on SATA II 3Gb/s.

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I would love to know the difference between SATA 6 gb/s and SATA 3 gb/s

 

 

I don't quite understand the concept

 

because new HDD gives you about 80-100 mb transfer/s

6 gb/s = 6000 megabits per second. 

3 gb/s = 3000 megabits per second. 

A new HDD gives you about 80-100 megabytes per second. 

8 bits = 1 byte.

800 bits = 100 bytes

800 megabits = 100 megabytes

6000 megabits > 800 megabits

An HDD will never fully utilize a single SATA port on it's own. There is no difference between SATA II and SATA III for an HDD. Only an SSD.

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I would love to know the difference between SATA 6 gb/s and SATA 3 gb/s

 

I don't quite understand the concept

 

because new HDD gives you about 80-100 mb transfer/s

I think there maybe something wrong with you HDD, transferring between two 3TB barracudas I'd normally get around 150MB/s

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If you're asking why there are "SATA 3Gbps" hard drives and "SATA 6Gbps" hard drives when they won't saturate either one, they are just putting the name of the interface that the drives use. It's like graphics cards all being PCI Express 3.0 x16. Even though none of them will actually use all of that bandwidth, it's simply the name of the interface that they connect with.

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6 gb/s = 6000 megabits per second. 

3 gb/s = 3000 megabits per second. 

A new HDD gives you about 80-100 megabytes per second. 

8 bits = 1 byte.

800 bits = 100 bytes

800 megabits = 100 megabytes

6000 megabits > 800 megabits

An HDD will never fully utilize a single SATA port on it's own. There is no difference between SATA II and SATA III for an HDD. Only an SSD.

Addendum: Due to 8b/10b encoding, actual available speeds are

150 MB/s, 300 MB/s and 600 MB/s for SATA1,2 and 3, respectively.

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Addendum: Due to 8b/10b encoding, actual available speeds are

150 MB/s, 300 MB/s and 600 MB/s for SATA1,2 and 3, respectively.

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For my pertinent links to guides, reviews, and anything similar, go here, and look under the spoiler labeled such. A brief history of Unix and it's relation to OS X by Builder.

 

 

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