sandisk extreme ii write speeds

[Arronleeds]

the write speeds of my ssd is supposed to be 340MB/s , when transferring things from my hdd to my ssd the max it will reach is 133MB/s, is this due to me moving from a sata 2 drive to a sata 3 drive? they are both connected to my motherboard in a sata 3 port with a sata 3 cable, the sandisk tool says my ssd is connected at the full 6GB/s so i dno whats going on, i know how to build a pc i just dont know much about ssd's lol. any help appreciated.

 

[Solandri]

You're being limited by your HDD's speed, not the SSD.

To measure the SSD's performance, use a program like CrystalDiskMark or ATTO.
http://crystalmark.info/software/CrystalDiskMark/index-e.html
http://www.majorgeeks.com/files/details/atto_disk_benchmark.html

They transfer data to/from RAM to the SSD, so you're measuring the SSD's speed.

Also, don't focus so much on the peak speeds. They rarely matter unless you're copying lots of big files (e.g. copying your movies folder). The 4k and 4kQ32 speeds are much more important, as they reflect how fast the drive is when it's working with lots of small files. When you start Windows or fire up a game, that's what the computer is mostly doing - reading lots of small files.

 

[Arronleeds]

these are my benchmark results from as ssd that my friend told me to use http://gyazo.com/4ff9065b2eb8919a776f3c7e3aecbe38

my ssd speeds are actually supposed to 550 each it says on the box.

also my mobo is a z87-g55 should my ram be in slot 2+4 for dual channel?

crystalmark results here: any good ? http://gyazo.com/75254f888160c742beb6991681788bd2

 

[Solandri]

my ssd speeds are actually supposed to 550 each it says on the box.

550 MB/s is an ideal max speed. Your drive will hit it on a sunny day when the phase of the moon is just right. During regular use it will be a bit slower.

also my mobo is a z87-g55 should my ram be in slot 2+4 for dual channel?

Usually the dual channel memory slots share the same color. So make sure your DIMMs are in two slots with the same color and you're good.

crystalmark results here: any good ? http://gyazo.com/75254f888160c742beb6991681788bd2

Yes those are very good speeds. In fact after seeing it I'm thinking maybe my next SSD should be a Sandisk Extreme II. The 4k read speed is slightly below average, but that 4k write speed is more than double the average for a SSD.

Don't worry about it being slightly slower than 550 MB/s. The MB/s scale is the inverse of your sense of speed ("how long does it take to copy a file?"). So the bigger the MB/s, the less it matters. 100 vs 102 MB/s makes a bigger difference than 500 vs 550 MB/s.

 

[Arronleeds]

Thanks very much for the into, very appreciated