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is a sata 6gbs a performance increase?

post #1 of 16
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Is there a significant performance increase with 6gbs? my mobo supports it and I just dropped my backup drive. So I am asking because I am thinking of getting a new drive and making my current drive my backup drive.
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post #2 of 16
No difference in mechanical drives.
Only a difference in SSD's if both the motherboard and the drive support the standard.

At the moment, that's only the C300, of which will increase to ~355 MB/sec in sequential reads over a normal ~265 MB/sec using SATA II.
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post #3 of 16
Thread Starter 
Quote:
Originally Posted by beers View Post
No difference in mechanical drives.
Only a difference in SSD's if both the motherboard and the drive support the standard.

At the moment, that's only the C300, of which will increase to ~355 MB/sec in sequential reads over a normal ~265 MB/sec using SATA II.
Thats what I wanted to know but wasnt sure since they sell sata 6 drives now a days
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post #4 of 16
Yeah, it's kind of a marketing gimmick.
You may get 6 Gbps from the SATA controller to the IO board of the HDD, but you're still limited from the mechanical aspect of how fast the drive can pull data off of the platters. This tends to be around ~90-115 MB/sec on more modern drives.
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post #5 of 16
Thread Starter 
Quote:
Originally Posted by beers View Post
Yeah, it's kind of a marketing gimmick.
You may get 6 Gbps from the SATA controller to the IO board of the HDD, but you're still limited from the mechanical aspect of how fast the drive can pull data off of the platters. This tends to be around ~90-115 MB/sec on more modern drives.
I dont get close the 90 when I xfer data More like 40mb/s. At least thats what windows reported
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post #6 of 16
From where to where?
If you're transferring files on the same drive, you're going to lose a lot due to the RW head moving around.

IIRC 640 Black should be up there at 80+. My 750 Blacks do something like 85-90 MB/sec each..
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post #7 of 16
well how old are the drives. are they getting trim , what drivers u using ? all contbute in speeds of drives also how full are they, For testing I use Old atto. old and everyone knows it. or for ssds i use as ssd.
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post #8 of 16
Thread Starter 
from my sig drive to a caviar blue 320gb. Both plugged directly to the board.
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post #9 of 16
You're likely limited by the write speed of the 320 in this case.
Before I bought the C300 I had a 320g WD in my rig, transfers over gigabit RAID 5 storage (250 MB/sec reads) to the drive were only ~50 MB/sec or so..
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post #10 of 16
Quote:
Yeah, it's kind of a marketing gimmick.
You may get 6 Gbps from the SATA controller to the IO board of the HDD, but you're still limited from the mechanical aspect of how fast the drive can pull data off of the platters. This tends to be around ~90-115 MB/sec on more modern drives.
Seriously I don't consider SATA6 any kind of marketing gimmick.

If the consumer doesn't know that drives being SATA 6GB/s doesn't mean they'll achieve those speeds it's a consumer (un)education problem.

Sorry but as usual I consider most consumers uneducated and it's not any else's problem except their own.
Edited by Old Hippie - 1/15/11 at 12:39pm
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