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Can someone explain SATA cable speeds to me? - Page 2

post #11 of 23
Quote:
Originally Posted by lukeman3000 View Post

Quote:
Originally Posted by Equine View Post

How many drives are you actually going to use? The board comes with four SATA cables, and two are 6gb/s. The 6gb/s is the maximum data transfer bandwidth. As far as i know, nothing really saturates it, but there is probably some performance to gain with the newer cables. An SSD would be more likely to see improvement with the higher bandwidth cables than a conventional hard drive.

So, two of the cables are 6 Gb/s while the other two are not?

I read an article in which they tested different SATA cables and found that they all performed roughly the same, regardless of their classification.

That said, should I probably be ok using the non 6Gb/s in my build? I'll have 3 devices:

Crucial M4 256 SSD (6Gb/s)
Seagate Caviar Black 1TB 7200 RPM (6Gb/s)
ASUS DVD+RW (non 6Gb/s)

Should I be ok using the non 6Gb/s cable on my CD/DVD drive, or am I missing out? The way it sounds, the non 6Gb/s SATA cables included with the P8Z77-V Pro should hopefully perform equally as well as the ones that are labeled as being 6 Gb/s... Can anyone confirm this?

 

As long as the cable is good quality, it does not really affect transfer speeds. There aren't "6 Gbps cables" etc:

 

Quote:

The same cables and connectors used for current SATA implementations can be used to connect SATA 6Gb/s devices. SATA-IO recommends utilizing quality components to ensure data integrity and robust operation at the fast 6Gb/s transfer rate. Cables already at the threshold of 3Gb/s operating margins may experience lower performance than expected at 6Gb/s due to an increased number of resends.

http://www.pugetsystems.com/labs/articles/SATA-cables-Is-there-a-difference-97 (benchmarks to show as well)

    
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post #12 of 23
Quote:
Originally Posted by lukeman3000 View Post

Quote:
Originally Posted by Equine View Post

How many drives are you actually going to use? The board comes with four SATA cables, and two are 6gb/s. The 6gb/s is the maximum data transfer bandwidth. As far as i know, nothing really saturates it, but there is probably some performance to gain with the newer cables. An SSD would be more likely to see improvement with the higher bandwidth cables than a conventional hard drive.

So, two of the cables are 6 Gb/s while the other two are not?

I read an article in which they tested different SATA cables and found that they all performed roughly the same, regardless of their classification.

That said, should I probably be ok using the non 6Gb/s in my build? I'll have 3 devices:

Crucial M4 256 SSD (6Gb/s)
Seagate Caviar Black 1TB 7200 RPM (6Gb/s)
ASUS DVD+RW (non 6Gb/s)

Should I be ok using the non 6Gb/s cable on my CD/DVD drive, or am I missing out? The way it sounds, the non 6Gb/s SATA cables included with the P8Z77-V Pro should hopefully perform equally as well as the ones that are labeled as being 6 Gb/s... Can anyone confirm this?
No, all cables that fit a sata port will work at 6gbps.

Also it;s six gigaBITS, not bytes tongue.gif
post #13 of 23
Thread Starter 
Quote:
Originally Posted by 3930K View Post

No, all cables that fit a sata port will work at 6gbps.
Also it;s six gigaBITS, not bytes tongue.gif

Right, that's why I started using a lowercase b : )

So if all cables that fit a sata port will work at 6Gb/s, why would they brand a SATA cable as "SATA 3" or "6 Gb/s"?
post #14 of 23
put simply:

a gigabit is 128 megabytes, so 6 gigabites a second is 768, or 3/4 of a gigabyte per second.

all sata cables can run at the same things, but the advantage of the new ones are the latches.
post #15 of 23
More money to them.
post #16 of 23
Quote:
Originally Posted by 3930K View Post

More money to them.

Monster needs to get in on making SATA 3 cables. Lul.
    
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post #17 of 23
There will be a difference between High end cables and Low end cables when you start going in to distances,

It is basically the same as the speaker cable and VGA cables of old the better the conduction (quality of materials) the lower the loss over a run / distance,

And as you are basically looking at less than a meter run (cable) you really are not going to see any real significance between the types of cables,

Shielding will only come in to play when you have a lot of interference say in a large server environment,

Sata I Sata II v Sata III cables are basically a marketing ploy,
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post #18 of 23
Quote:
Originally Posted by macca_dj View Post

There will be a difference between High end cables and Low end cables when you start going in to distances,
It is basically the same as the speaker cable and VGA cables of old the better the conduction (quality of materials) the lower the loss over a run / distance,
And as you are basically looking at less than a meter run (cable) you really are not going to see any real significance between the types of cables,
Shielding will only come in to play when you have a lot of interference say in a large server environment,
Sata I Sata II v Sata III cables are basically a marketing ploy,

Digital is digital, either it will work or it will not. VGA was an analog video interface, as are speaker cable. Comparing apples to oranges here, a better comparison would be HDMI, where at certain lengths the cable just fails to work. There is no "degrading process".

That said, in a server environment, the shielding is probably important, but spread spectrum on servers tends to help this a lot too.
Edited by mezmenir - 9/24/12 at 2:40pm
    
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post #19 of 23
Quote:
Originally Posted by lukeman3000 View Post

Seagate Caviar Black 1TB 7200 RPM (6Gb/s)

Interesting...
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post #20 of 23
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Quote:
Originally Posted by Cheetohz View Post

Interesting...

Why is the fact that I'm getting a Seagate Caviar Black interesting?
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