Sata2 or Sata3

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iliya24

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Jan 28, 2013
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Hello.
I ave a qastion i have laptop lenovo t420s and i was woundering if sata3 will be good form me?
Thx.
 
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Dereck47
Yes, you always want to get a SATA 3 (6Gb/s) SSD, even if you only have SATA 2 ports on your laptop or desktop.

SATA 3 drives are newer tech. The firmware on current generation SSDs have better compatibility/reliability than older SATA 2 drives.
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Dereck47

Dereck47

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Yes, you always want to get a SATA 3 (6Gb/s) SSD, even if you only have SATA 2 ports on your laptop or desktop.

SATA 3 drives are newer tech. The firmware on current generation SSDs have better compatibility/reliability than older SATA 2 drives.
 
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MatildaPersson

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No. A SATA 3 capable device, if plugged into a SATA 2 port, will drop down to that speed.

SATA 2 + SATA 3 = SATA 2.

SATA 3 + SATA 2 = SATA 2.

SATA 3 + SATA 3 = SATA 3.
 
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MatildaPersson

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Better at what?

Two equal quality devices, one for SATA 2 and one for SATA 3, when plugged into a SATA 2 plug, will perform the exact same.
 
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RetiredChief

RetiredChief

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Concur with dereck47
If going with a SSD, recommend a sata III SSD even if using on a sata II port
For HDDs - Mocs-nicks as SATAIII HDD is more a marketing gimick as the ONLY benifit of using a sata III HDD on a Sata III port verse Plugging it into a sata II port is that very short Burst speed - NO diff in sustanded throughput.

@MatildaPersson - I think each sata port is a master and speed is goverend by the device enogotion with he host. Not like the old PATA (master/slave) where speed is governed by the slowest device. Yes, if a sata III SSD is pluged into a sata II port, it's speed will be limitedby sata ii throughput, BUT a Sata III ssd is still the choice.

Bottom Line: If going with a SSD, go with a sata III SSD, preferably one based on Marvel controller (Ie Crucial M4) ot the Samsung 830/840. NOTE the Samesung 840 pro has the lowest power consumption. IF asking about a HDD - Flip coin, but go with a 7200 RPM drive.
Side comment, if this laptop only has one Hardrive Bay then MatildaPersson comment is pointless. My laptop has two HDD bays, both with an SSD.

 
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Dereck47

Dereck47

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You are correct. I was not trying to say that he was going to get SATA 3 Speeds.
I was trying to say that compatibility and reliability will be better with a SATA 3 drive.
TRIM, Garbage Collection, Wear-Leveling algorithms, are all better with current generation SSDs.
 
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neon neophyte

neon neophyte

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thats just it, they arent equal quality. sata 2 ssds are old, they simply arent as good. for example, a vertex 2 compared to a vertex 3 or 4 isnt as good. not matter what port you put it on.

how do you have trouble understanding this? maybe just leave this talk to the big boys
 
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iliya24

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Thank you for explaning i have another question iwas offered to buy
Corsair Force Series GT 120GB SSD Sata III MLC 2.5'' is it a good one?
Thx.
 
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RetiredChief

RetiredChief

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^ Not so much due to initial controller problems, more to the company attitude inthat they blamed the user knowledge and/or system while saying they DID NOT have a problem. Can forgive the problem (Note even intel had a couple of problems, one that turned the SSD into a 8 mb SSD - then crucial with there 5000 Hr bug) - But can NOT forgive management attitude!
 
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