"WD caviar blue sata 3 HDD's", which will be fast ?

[crazy.wingman]

Hi ppl

i want to buy WD sata 3 HDD for my boot drive, which will be the fast option among these coz buffering n storage size varies ?

Western Digital Caviar Blue WD7500AALX 750GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard.

Western Digital Caviar Blue WD5000AAKX 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard.

Western Digital Caviar Blue WD10EALX 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive.

all are caviar blue, i thing not much performance diff.. from WD black ones.
so smart choice rather than an SSD will be the blue ones.

plz don't suggest any SSD's i knw they are awesome but expensive.
HDD's mentioned above range from 45 to 65 USD$.

plz its urgent.

 

[fffblackmage]

You do realize that SATA III isn't going to make these drives any faster than the normal SATA II HDDs, right? The fastest HDD can sustain a ~150MBps transfer? That's 1.2gbps. SATA II already offers 3gbps bandwidth, more than twice needed. You're just paying more for something that doesn't really do anything.

If you want speed, consider getting a WD Black or a Samsung F3 500GB/1TB.

But if you must choose one of those you listed, any of them will do. They probably all perform similarly.

 

[supremor]

While SATA III is indeed useless for mechanical drives from my experience the latest revisions with the highest density platters are often the SATA III ones so they will indeed be faster just not because its SATA III.
I would suggest a single platter 500gb Caviar Black or dual platter 1TB black. The Samsung 1TB F3's are supposed to be great drives too but if you must pick from your own list I'd agree with the poster above that there probably wont be any noticeable difference between the drives you listed.

 

[greenhawk]

i thing not much performance diff.. from WD black ones.

Proberly is a difference, otherwise WD would not have the black range on offer.

As to how much of a difference, proberly not much unless heavy multi-tasking or similar high loads.

As to the Blue drives on offer, sata speed makes near no difference (espically in the real world) as the disk is not up to fully utilizing sata 2.

Cache can come into play a bit, so leaning that way is my advice, but that is pointless if the drive is not large enough for your needs.

difference between a range of blues would be small. Generally the smaller ones have a ever so smaller power draw (less platters), but then some of the range might have more dense platters, so better sustained transfer speeds.

not enough difference to worry about personally. Just find the latest version is about all you can do (the title "blue" has been used on a few ranges since it's original release IIRC).

 

[slyphnier]

i think its just between premium and standard product
black maybe using better parts (similar to their enterprise drives)
while blue using parts like green but with 7200rpm

also black give 5 year warranty, blue-green drives 3 year warranty

 

[crazy.wingman]

i'll try to get WD balck sata 3 500GB or samsung spp F3

in india only the 1 tb versions of WD black are available. i think i should go with f3

plz send any links for HDD benchmark charts for sata 2 vs sata 3.