TOSHIBA THNS256GG8BAAA

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CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

           Sequential Read :   131.138 MB/s
          Sequential Write :   113.012 MB/s
         Random Read 512KB :   139.948 MB/s
        Random Write 512KB :   154.330 MB/s
    Random Read 4KB (QD=1) :    11.683 MB/s [  2852.4 IOPS]
   Random Write 4KB (QD=1) :    16.444 MB/s [  4014.6 IOPS]
   Random Read 4KB (QD=32) :    17.530 MB/s [  4279.7 IOPS]
  Random Write 4KB (QD=32) :     0.665 MB/s [   162.4 IOPS]

  Test : 50 MB [C: 60.9% (145.1/238.2 GB)] (x2)
  Date : 2012/06/11 10:31:31
    OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
 

以前よりパフォーマンスが落ちたのは劣化したのかな？