From performance to power 12 SSD hard drive horizontal evaluation – hard drives, laptop-IT industry
2006 SSD Samsung introduced the first solid-state hard drive now, SSD has been developed for nearly 3 years. From the first volume only 32GB, interface UltraATA/66, to today's capacity will soon reach 320GB (Intel34nmX25-M), and interfaces has become a SATA/300, next year will be developed to SATA/600. Capacity on increased 10-fold, I / O read and write speed performance and also made great progress. Since 2006, Samsung introduced the first solid-state SSD Hard disk So far, SSD has been developed for nearly 3 years. From the first volume only 32GB, interface UltraATA/66, to today's capacity will soon reach 320GB (Intel34nmX25-M), and interfaces has become a SATA/300, next year will be developed to SATA/600. Capacity on increased 10-fold, I / O read and write speed performance and also made great progress.
Early SSD products are not perfect, firmware, a very serious problem, SSD manufacturers almost every few weeks to release a new firmware version to correct before the BUG. Moreover, when the SSD is not equipped with the cache, not only performance better than traditional Hard disk Strong number, but frequent on the flash memory to read, erase and rewrite operation also affect the stability and service life of SSD.
Until the end of 2008, SSD manufacturers built by the hard disk cache to resolve these issues, while adding a separate controller chips, making SSD hard drive performance has reached a new height. Today, we have selected 12 models from different manufacturers performance grade SSD products, to see how these new kind of performance products.
12 horizontal evaluation models SSD solid state drive
We know, the biggest advantage of solid-state hard drive is a fast random access time, access to traditional mechanical hard drives average operation time of 4 to 20 milliseconds, and SSD can be reached from 0.05 to 2 ms. In the I / O performance, up to traditional mechanical hard drives for more than 50 times! Moreover, the solid-state drives can provide more than 240MB / S data throughput, while the fastest growing enterprise-class mechanical hard drive also, but 200MB / S (SeagateCheetah 15K.7).
SSD is now able to restrict the capacity and price, and Western Digital has released a 2.5-inch 1TB Notebook Hard drive, while the maximum capacity of SSD products, but 256GB (Intel will soon release a new 34nm process 320GBX25-M), although the former uses non-standard height of 12.5mm, but even the standard 9.5mm, its capacity remains the largest capacity SSD 2 times. On price, 500GB notebook hard drive, but 80-120 dollars, while at the same price I'm afraid we can only buy low-capacity and the old version of the SSD (like OCZVertex 30GB). If you want to buy 256GB product, then you at least have to pay 800 U.S. dollars price.
SSD price
Introducing the evaluation of 12 to participate in today's SSD products, we first look at where the price of several products.
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