Slow Read & Write speed New SSD!!

[tota]

Just got a brand new 1TB Sandisk 3D SSD and did a fresh install (HFS+) on my probook 4540s . When tested the drive speed with AJA system I get speed like 236 write, 256 read. Of course its better than a hdd. But what is bugging me is, it supposed to be at least 500Mbps. Any clue would be helpful. thanks

 

[tota]

bump!!
any idea guys? thanks

 

[RehabMan]

Just got a brand new 1TB Sandisk 3D SSD and did a fresh install (HFS+) on my probook 4540s . When tested the drive speed with AJA system I get speed like 236 write, 256 read. Of course its better than a hdd. But what is bugging me is, it supposed to be at least 500Mbps. Any clue would be helpful. thanks

The manufacturer, in rating at 500Mbps, probably used a different benchmark program that likely uses non-random data or different read/write patterns than AJA.