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I see that Newegg has a new Western Digital VelociRaptor out with a 6.0Gb SATA interface: http://www.newegg.com/Product/Product.aspx?Item=N82E16822136555
What is the bottleneck with this drive? The transfer rate of the SATA interface or the transfer rate of the actual drive?
quickcel
Posted 2010-04-09T16:25:59.777
Reputation: 4 203
2
More puzzling than the VR200M's cache size is the drive's swanky new 6Gbps Serial ATA interface. There might be a small chance that this latest VelociRaptor can burst data from its cache quicker than the prior SATA standard's 300MB/s limit, but the drive's own spec sheet confirms that it can't sustain even half that speed. I don't imagine the faster interface is needed at all.
coneslayer
Posted 2010-04-09T16:25:59.777
Reputation: 7 494
-1
Most SATA controllers will not take advantage of the 6GB/s speed. You'll need a new SATA controller to handle this. As per a review on newegg:
You need to get a SATA 6.0 controller (pci-e for best result) or a new motherboard/system to run SATA 6.0 speeds.
th3dude
Posted 2010-04-09T16:25:59.777
Reputation: 9 189
3I think the question is, even if you have a 6.0 Gbps controller, is the disk capable of transferring data at that rate (or, at least, faster than 3.0 Gbps)? – coneslayer – 2010-04-09T16:37:49.483
1That's a good review - looks like the "Maximum Sustained Data Rate" is ~150Mb/sec...which would put the bottleneck with the hard drive not the interface...thanks! – quickcel – 2010-04-09T17:14:18.230