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Seagate Cheetah 15K.5 vs Kingston SSD

Last response: in Storage
February 12, 2010 10:32:18 AM


I'm helping a friend build his system, and he needs really, really, really high read/write speeds. The faster the better.

He's been looking at SSDs for some time, and the Kingston 128GB is only $300. I've been looking at the Seagate Cheetah 15K.5 146.8GB in SAS 3GB/s (about $400).

I understand that SSDs are practically instantaneous in speed, but which is the faster drive and which is the most value for money? Please consider these as two separate questions.


a b G Storage
February 12, 2010 11:08:57 AM

rider_eragon said:

I understand that SSDs are practically instantaneous in speed

Yes, but only for small read/write operations.
Access times with the Kingston are about 80 times faster, transfer rates are about the same and it's cheaper so to me this is a no-brainer.
a b G Storage
February 13, 2010 12:45:49 PM

The Cheetah 15k.5 is not the current model and the sustained transfer varies between 73 Mbytes/sec and 125 Mbytes/sec which even a current 7200 RPM SATA drive can deliver. As you did not specify the usage scenarios it's difficult to give specific advice. I can't imagine an advantage for a Cheetah 15k.5 (even 15k.6 or 15k.7) for most scenarios but a big advantage of a SSD in some. If you do not own an SAS controller I would go for an SSD.