Definitive 2TB HD Roundup: WD, Seagate, Samsung
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Samsung EcoGreen F3 2TB |
Seagate Barracuda LP 2TB |
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Seagate Barracuda XT 2TB |
Seagate Constellation ES 2TB |
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WD AV-GP 2TB |
WD Caviar Black 1TB |
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WD Caviar Black 2TB |
WD Caviar Green 2TB |
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WD RE4 2TB |
WD RE4-GP 2TB |
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As far as HD Tach RW's write and read tests are concerned, if you were expecting a different pecking order from the previous tests, you'll be disappointed. The WD RE4 2TB once again takes top honors with a write speed of 101.2MB/Sec. Behind that is a relatively tight grouping, with the Seagate Constellation ES 2TB (99.9MB/Sec), Seagate Barracuda XT 2TB (99.5MB/Sec), WD Caviar Black 2TB (97.5MB/Sec), and WD Caviar Black 1TB (96.9MB/Sec). The Seagate Barracuda LP 2TB is yet again the speediest general-purpose drive.
On HD Tach RW's read test, the Seagate Constellation ES 2TB elbows its way to the top with a read speed of 116.4MB/Sec. It is closely followed by the WD RE4 2TB (115.8MB/Sec), Seagate Barracuda XT 2TB (114.8), WD Caviar Black 1TB (113.1MB/Sec), and the WD Caviar Black 1TB (111.7MB/Sec). The Seagate Barracuda LP 2TB leads the general-purpose HDDs with a read speed of 98.4MB/Sec.
HD Tach RW's burst speed test is the first test we ran where we actually saw the two 6Gb/Sec drives take a performance lead. The WD Caviar Black 1TB had an impressive burst speed of 314.3MB/Sec, while the Seagate Barracuda XT 2TB had a burst speed of 287MB/Sec. All of the HDDs had burst speeds that were over 200MB/Sec--the Seagate Constellation ES 2TB brought up the rear at a still impressive 212.5MB/Sec. The best the 120GB OCZ Vertex Turbo 2.5-inch SSD could do on the burst test, however, was 198.8MB/Sec. The OCZ SSD's write and read speeds were still leaps and bounds ahead of the HDDs, though, with a write speed of 154.8MB/Sec and a read speed of 223MB/Sec.
