[QUOTE=RJL65;2424524]Be careful when buying the current SATA 2TB hard drives. Most of those now spin at less than 6000 RPM versus 7200 RPM for the lower-capacity drives. (I’ve been to Best Buy many times to discover that the Seagate Barracuda 2TB SATA hard drive spins at only 5900 RPM as opposed to the 7200 RPM used by the 1.5TB and smaller Barracuda drives.) And the WD Caviar Green series drives now use mostly 5400 RPM spindles irrespective of their capacity.[/QUOTE]
[QUOTE=Aramchek;2424704]Hitachi just announced a new 2TB drive, which does run at 7200RPM. I can’t recall seeing anyone else that runs at that speed (like RJL65 pointed out, they’re usually slower than that).[/QUOTE]
More recently, both WD and Seagate introduced new 2TB drives which do spin at 7200 RPM (called the Caviar Black and the Barracuda XT, respectively, both with 64MB of buffer memory–and the Seagate also features a new SATA III interface with a burst transfer rate of 6 Gbps). But at their current street prices, they are significantly more expensive per GB than their 1TB brandmates in the same series, as well as significantly more expensive than their slower, sub-6000 RPM brandmates.
I did mention that WD offers a line of 5400 RPM class drives (Caviar Green) in a wide range of capacities from 500GB to 2TB (it should be noted that the Caviar Green’s true spindle speed is only 5405 RPM, WD’s “variable speed” or “smart speed” claims notwithstanding). Now, Seagate has applied the 5900 RPM spindle speed first used in its initial 2TB drive to its Barracuda LP line of hard drives, which range from 1TB to 2TB (including a 1.5TB model). The current Barracuda 7200.11 1.5TB drive is being phased out of production with no direct replacement; the Barracuda 7200.12 series drives currently max out at 1TB. The 7200 RPM 1.5TB drive’s most likely replacement will be a drive in the significantly more expensive Barracuda XT line.