SATA II v SATA III - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > System Upgrades
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 06-16-2012, 01:58 PM   #1 (permalink)
Super Techie
 
pro2a's Avatar
 
Join Date: Jun 2009
Location: Pennsylvania
Posts: 382
Default SATA II v SATA III

Ok... So I got a steal on Newegg. I love their holiday specials They were advertising 180GB OCZ SSD's (Clicky) for $139 and they retail for like $224... Needless to say they didn't have to twist my arm... I got 2.

Anyway read write speeds are 525 and 500mb/s respectively. Eventually I plan on getting a MoBo which supports SATA 3, right now however I only support SATA 2. I know I can use a SATA 3 in a SATA 2 port, but what can I expect with the read write speeds? What is the cap with SATA 2? I heard someone say the seek times should stay the same (3GB/s v 6GB/s isn't even noticeable), it's just how quick it gets it. Does this seem right?
__________________

__________________
pro2a is offline   Reply With Quote
Old 06-16-2012, 06:09 PM   #2 (permalink)
Build Guru
 
PP Mguire's Avatar
 
Join Date: Dec 2004
Location: Fort Worth, Texas
Posts: 28,315
Default Re: SATA II v SATA III

Quote:
Originally Posted by pro2a View Post
Ok... So I got a steal on Newegg. I love their holiday specials They were advertising 180GB OCZ SSD's (Clicky) for $139 and they retail for like $224... Needless to say they didn't have to twist my arm... I got 2.

Anyway read write speeds are 525 and 500mb/s respectively. Eventually I plan on getting a MoBo which supports SATA 3, right now however I only support SATA 2. I know I can use a SATA 3 in a SATA 2 port, but what can I expect with the read write speeds? What is the cap with SATA 2? I heard someone say the seek times should stay the same (3GB/s v 6GB/s isn't even noticeable), it's just how quick it gets it. Does this seem right?
The seek times are independent to the SSD or drive itself. The only thing the bus limits is throughput which is how many MB/s of data can go back and forth at any given time. With this being said, SATA2 has a max of around 300MB/s so you're looking around 285 read/write sustained just like a regular SATA2 SSD. It's nothing to shake your head at either as SATA2 speeds are still fast for an SSD. Not going to lie, my friends Agility 3 and my Vertex 2 look identical in terms of loading while looking directly at our screens. In other words, benchmarks he is going to eat me alive, but playing BF3, Skyrim, loading Windows or a browser all literally seem and feel the same.
__________________

__________________
"Resolution is just a number." #Ubisoft
Origin/Steam = PP_Mguire Twitch = pp_mguire Instagram = ppmguire PSN = PP_Mguire

Access to my Plex PM me.
PP Mguire is offline   Reply With Quote
Old 06-16-2012, 06:21 PM   #3 (permalink)
Super Techie
 
pro2a's Avatar
 
Join Date: Jun 2009
Location: Pennsylvania
Posts: 382
Default Re: SATA II v SATA III

The way I understand it from your post is you saying is that read/write speeds cap at 300mb/s with a SATA 2 and the seek times will stay the same? The way I understand it the read/write speeds are data transfer, the IOPS is the time it takes to find the information on the drive which should not bottle neck.

Once I get a SATA 3 compatible MoBo... then I can make it out to 525/500mps speeds
__________________
pro2a is offline   Reply With Quote
Old 06-17-2012, 12:02 AM   #4 (permalink)
Build Guru
 
PP Mguire's Avatar
 
Join Date: Dec 2004
Location: Fort Worth, Texas
Posts: 28,315
Default Re: SATA II v SATA III

Quote:
Originally Posted by pro2a View Post
The way I understand it from your post is you saying is that read/write speeds cap at 300mb/s with a SATA 2 and the seek times will stay the same? The way I understand it the read/write speeds are data transfer, the IOPS is the time it takes to find the information on the drive which should not bottle neck.

Once I get a SATA 3 compatible MoBo... then I can make it out to 525/500mps speeds
Yes read and write speeds are data transfer which is limited to the type of bus you run the device on IE SATA 2 or 3. IOPS is input/output operations per second. In other words how fast it can read/write simultaneously which is what gives Vertex drives their edge with higher IOPS.
Seek time is how fast the device can find a file. Mechanical drives are limited to 4.6ms or something like that due to spin speeds, but SSDs are like less than a ms.

IOPS and seek time are not dependent on the bus you use so there will be no difference there between SATA 2 and 3. Only read/write speeds which will cap around 285MB/s going both ways on SATA 2.
__________________
"Resolution is just a number." #Ubisoft
Origin/Steam = PP_Mguire Twitch = pp_mguire Instagram = ppmguire PSN = PP_Mguire

Access to my Plex PM me.
PP Mguire is offline   Reply With Quote
Old 06-17-2012, 07:00 AM   #5 (permalink)
Lord Techie
 
Join Date: Feb 2005
Location: asdf
Posts: 8,887
Default Re: SATA II v SATA III

About the only time you would really notice a difference between SATA2 and SATA3 right now is when transferring between two drives on the same machine, or in a benchmark. Other than that, you can only load data so fast when it's so small. Are you really going to tell the difference between 1MB of data being transfered between a SATA2 and SATA3 drive? Unlikely, that is, till you start getting into hundreds of megs, then you will be able to notice speed differences. The sad part is, at the rate that SSD's are going in terms of speed, we might be needing 10Gbit or 100Gbit for home networks sooner than thought.
c0rr0sive is offline   Reply With Quote
Old 06-17-2012, 11:48 AM   #6 (permalink)
Super Techie
 
pro2a's Avatar
 
Join Date: Jun 2009
Location: Pennsylvania
Posts: 382
Default Re: SATA II v SATA III

Sounds good guys. This is what I was looking for. Eventually when I play games like SC2, MW3, Black Ops etc... on SATA 3 board, I'm assuming I will notice a marked increase on load times as opposed to opening the same games on a SATA 2. As for run of the mill programs i.e. Firefox, Winamp, Google Earth and other stuff, I won't notice a difference. This is what I gather. Thanks for the help.
__________________
pro2a is offline   Reply With Quote
Old 06-17-2012, 01:52 PM   #7 (permalink)
Lord Techie
 
Join Date: Feb 2005
Location: asdf
Posts: 8,887
Default Re: SATA II v SATA III

Well, the load on most games isn't big really... Sure the game it self is large, but, if the map your loading is at most 20mb, you won't see much any difference.
c0rr0sive is offline   Reply With Quote
Old 06-17-2012, 04:41 PM   #8 (permalink)
Build Guru
 
PP Mguire's Avatar
 
Join Date: Dec 2004
Location: Fort Worth, Texas
Posts: 28,315
Default Re: SATA II v SATA III

Quote:
Originally Posted by pro2a View Post
Sounds good guys. This is what I was looking for. Eventually when I play games like SC2, MW3, Black Ops etc... on SATA 3 board, I'm assuming I will notice a marked increase on load times as opposed to opening the same games on a SATA 2. As for run of the mill programs i.e. Firefox, Winamp, Google Earth and other stuff, I won't notice a difference. This is what I gather. Thanks for the help.
Quote:
Originally Posted by c0rr0sive View Post
Well, the load on most games isn't big really... Sure the game it self is large, but, if the map your loading is at most 20mb, you won't see much any difference.
This. The only 2 games you will see a difference in between drives is BF3 loading and Skyrim loading. And here again, the difference between my friends Agility 3 and my Vertex 2 is real slim. I load BF3 maps about as quickly as he does.
__________________

__________________
"Resolution is just a number." #Ubisoft
Origin/Steam = PP_Mguire Twitch = pp_mguire Instagram = ppmguire PSN = PP_Mguire

Access to my Plex PM me.
PP Mguire is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
SATA III for SATA? itsMIkey New Systems | Building and Buying 4 06-07-2012 11:18 PM
SSD's in R0 running faster in Sata II then Sata III? Chad711 New Systems | Building and Buying 3 05-08-2012 12:40 PM
SATA I, II, & III Question. pro2a System Upgrades 1 03-28-2012 07:41 PM
Can a standard HDD benefit from SATA III? Jayce New Systems | Building and Buying 7 02-18-2012 10:36 AM
Would I see much of a performance difference between SATA II vs. SATA III SSD? soarwitheagles System Upgrades 10 12-15-2011 09:36 AM



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 10:12 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.