Definitive 2TB HD Roundup: WD, Seagate, Samsung

Article Index

ATTO Disk Benchmark




ATTO is a more straight-forward type of disk benchmark that measures transfers across a specific volume length. It measures raw transfer rates for both reads and writes and graphs them out in an easily interpreted chart. We chose 0.5KB through 8,192KB transfer sizes over a total max volume length of 256MB.

ATTO Disk Benchmark - Read/Write Performance
Version 2.46

 

 

 Samsung EcoGreen F3 2TB

 Seagate Barracuda LP 2TB

 

 

 

 Seagate Barracuda XT 2TB

 Seagate Constellation ES 2TB

 

 

 

 WD AV-GP 2TB

 WD Caviar Black 1TB

 

 

 

 WD Caviar Black 2TB

 WD Caviar Green 2TB

 

 

 

 WD RE4 2TB

 WD RE4-GP 2TB


Three HDDs exceeded write speeds of 140MB/Sec on our ATTO test: the WD RE4 2TB (144.3MB/Sec), Seagate Barracuda XT 2TB (143.8MB/Sec), and the Seagate Constellation ES 2TB (141.0MB/Sec). Both WD Caviar Black drives also showed strong write performance--the 2TB drive had a write speed of 138.1MB/Sec and the 1TB version saw 133.7MB/Sec. Two of the general-purpose HDDs also had decent write performance: The Samsung EcoGreen F3 2TB had a write speed of 126MB/Sec and the Seagate Barracuda LP wrote at 122.3MB/Sec.

For read speeds, a total of five drives managed speeds that exceeded 140MB/Sec: The WD RE4 2TB lead the pack at 155.8MB/Sec, followed by the WD Caviar Black 2TB (148.9MB/Sec), Seagate Barracuda XT 2TB (147.5MB/Sec), Seagate Constellation ES 2TB (145.1MB/Sec), and the WD Caviar Black 1TB (142.8MB/Sec). The top-performing general-purpose HDD was the Seagate Barracuda LP, with a write speed of 122.6MB/Sec.

Once again, the two 6Gb/Sec drives didn't see any significant performance benefit from their faster SATA interfaces. On the other hand, the 120GB OCZ Vertex Turbo 2.5-inch SSD had a lighting-fast write speed of 201.5MB/Sec and a zippy read speed of 271.7MB/Sec.


Related content

Comments

Show comments blog comments powered by Disqus