![]() ![]() WD claims an 8.9 millisecond access time. Like all Caviars, the WD2500KS is built around a 7200 RPM spindle. Though competitors such as Seagate and Maxtor have commenced with NCQ inclusion even on desktop-oriented drives, WD claims that NCQ does not help and can even hurt single-user performance. Regrettably, despite the “SATA II” moniker, the WD2500KS does not implement SATA Native Command Queuing (NCQ). WD actually labels the drive “SATA II” since it implements the 300 MB/sec transfer rates found in the SATA-2 spec. Western Digital has recently began shipping the Caviar WD2500KS, the firm’s first from-the-ground-up SATA design. Even the blazing 10,000 RPM Raptor remains a PATA design retrofit for SATA operation.įinally, however, things are changing. While Seagate has had native SATA designs in place for over two years now (ever since the Barracuda ATA V) and while Maxtor has boasted the MaXLine III and DiamondMax 10 (with 16 MB buffers to boot!), WD has stuck with placing bridge chips on tried-and-true designs while the market transitioned. WD has been noticeably absent when it comes to SATA drives featuring a native, non-bridged interface. Western Digital Caviar WD2500KS Capacities This review remains for reference purposes only. Please see this article for updated results. Note: Since the publication of this review, this drive has been retested under Testbed4, a newer hardware/software/benchmark platform. Let’s take a look at how WD’s newest design fares! Things have finally changed with the Caviar WD2500KS, a desktop-oriented drive designed from the start with SATA in mind. Unlike the competition, for over two years Western Digital has relied on a PATA – SATA bridge to transition the Caviar and Raptor series to the new standard.
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