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Mobile Chipsets Don't Take Advantage of SSDs faster than SATA150 spec ? Mobile Chipsets Don't Take Advantage of SSDs faster than SATA150 spec ?
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Mobile Chipsets Don't Take Advantage of SSDs faster than SATA150 spec ?
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Old 10th March 2009, 02:47   #11
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First site I googled up: http://www.notebookcheck.net/Review-...B.14106.0.html

9400M laptop and X25-M drive. Seems to look like 1.5 GB/s bottleneck if going by the read performance? I am very surprised by this, would have thought the 9400M was better...
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Old 10th March 2009, 08:39   #12
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Well, there is some debate whether there is any SSD that has sustained transfer rates above 150MB/s.
Burst speeds have certainly exceeded SATA-I.
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Old 15th June 2009, 12:19   #13
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I guess this thread gets a bit of a renewal now that Apple's new notebooks seem to get a new 1,5Gb SATA speed cap.

http://www.dailytech.com/article.aspx?newsid=15410
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Old 15th June 2009, 13:16   #14
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they wanted to save money by using a cheaper chipset which suffices for HDDs but is too slow to get max performance from SSD. and this in a $1100 product...
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Old 15th June 2009, 14:11   #15
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Quote:
Originally Posted by jmke View Post
they wanted to save money by using a cheaper chipset which suffices for HDDs but is too slow to get max performance from SSD. and this in a $1100 product...
There's no evidence of a different chipset than before, so what exactly is going on, nobody knows.
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Old 15th June 2009, 14:55   #16
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Quote:
There's no evidence of a different chipset than before
so still an old chipset then with SATA 1.5gbs
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Old 15th June 2009, 21:53   #17
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Quote:
Unfortunately, the current version of the MacBook Pro appears to only support 1.5Gbps SATA. I’m not sure whether this is an OS, drive or hardware problem, but your drive is limited to transfer rates of 150MB/s. For most laptop drives, this isn’t a problem. Your 5400RPM SATA drive just isn’t going to be moving anything at 150MB/s. The real problem lies with high performance SSDs.
http://www.anandtech.com/mac/showdoc.aspx?i=3582&p=2
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