SATA2 VS SATA3

[MrRX7]

Will I notice any difference at all if i upgrade my current motherboard which has SATA 2 3gbps ports to another motherboard which has SATA3 6gbps ports?

Also

1. My HDD's are OS is on a WD 500GB Blue 3.5inch HDD and my data is on a 2TB WD Green 3.5inch HDD?
2. Is the 2TB WD Green drive a good choice for storing data that i want it to last as long as possible?
3. What are maximum real life transfer speeds on the two SATA types and then what are the speeds I will see read and write on my two HDD's?

[Matsy]

There isn't a difference.

Hard drives can't use the extra speed sata 3 gives over sata 2.

300MB/s is the SATAII interface speed, no hard drive (apart from SSD's) can get anywhere near this speed yet.

 

1.  That is fine.

2.  Yes they are a decent option, but would lean more towards the WD red's.

3.  Depends on the speed of the HDD (7200rpm etc) and the hard drive it self, it will vary allot.

[brat137]

Without getting an SSD you won't notice the difference. Otherwise I do not know real life speeds to expect. But the mechanical drives you own won't go beyond SATA 2

[Dr3nz4r]

just stay with your Mobo, im using sata II aswell, even though i got an SSD, ebcause the speed of 300mb/s is jsut fast enought for me, and any device i could possibly throw at my mobo.. espacially for HDD's as my pre posters mentiioned, you wont get any benefits..(except when acessing multiple drives simultaneously)

[MrRX7]

just stay with your Mobo, im using sata II aswell, even though i got an SSD, ebcause the speed of 300mb/s is jsut fast enought for me, and any device i could possibly throw at my mobo.. espacially for HDD's as my pre posters mentiioned, you wont get any benefits..(except when acessing multiple drives simultaneously)

ok multiple as in? C drive os blue 500gb and 2tb green data drive at the same time? or 3 or more?

[Dr3nz4r]

you would see the difference when using 5 or more drives simultaneously.. you could calculate like this: add the average drive speed (write/read in mb/s) and see if you get over 300.. if so you would benefit from SATA III which features max speed of 600mb/s

[DirkW]

you would see the difference when using 5 or more drives simultaneously.. you could calculate like this: add the average drive speed (write/read in mb/s) and see if you get over 300.. if so you would benefit from SATA III which features max speed of 600mb/s

 

Wasn't that 300 (or 600) MB/s per channel with SATA? In that case you would probably never reach the limit, using HDDs (even with more than 5).

[Dr3nz4r]

Wasn't that 300 (or 600) MB/s per channel with SATA? In that case you would probably never reach the limit, using HDDs (even with more than 5).

not quite shure, but if i do use my ssd & hdd at the same time, i wont reach full ~300mb/s with my ssd, so i guess its the total limit, but dont quote me on that...