WD raptor 36 vs 74 vs 150

[raysusan]

beside the size
any more different between them in term of speed etc?:s11:

[mun_hoe]

speed will be the 150 wins the 74 and 36, but the newly launched 300gb velociraptor owns the 150gb raptor.

[sAxman_Returns]

so consider different specs dispite the capacity difference lar?

[elu]

so consider different specs dispite the capacity difference lar?


You digged up an almost one year old thread. And not exactly; All the models within the same range perform similarly to one another.

i.e. within the same product range like the ADFD 16MB, the 36GB variant, 74GB variant and the 150GB variant will perform similarly, since they would have the same cache size, same firmware version and same platter density.

[sAxman_Returns]

if everything is the same, small size disk should perform slightly faster.... :s22:

[elu]

if everything is the same, small size disk should perform slightly faster.... :s22:


And why so? :s11:

[sAxman_Returns]

lesser seek time when it comes to very fragmented disk?

[elu]

lesser seek time when it comes to very fragmented disk?



Not really. The number of read/write heads increase with the number of platters. Hence each head is actually seeking amongst the same number of data sectors regardless of the capacity size. Probably some performance penalty due to the increased MFT size but the difference should be insignificant.

Which brings me to conclude that as an end user, you will *not* see any performance differences between the different capacity ranges of the same model.

[sAxman_Returns]

HDD very funny, the bigger capacity it is, the cheaper it is in terms of GB/$ ratio. But SSD is the other way round....the bigger capacity it is, the more expensive it is....

[delson_tan]

HDD very funny, the bigger capacity it is, the cheaper it is in terms of GB/$ ratio. But SSD is the other way round....the bigger capacity it is, the more expensive it is....

Coz the technology is new. Trying to squeeze more into the same size is difficult. You don't see 2TB being cheaper than 1TB and 1.5TB right? :D