Tom's Hardware > Forum > Storage > Flash Media > [Solved] Installed Samsung SSD into Lenovo T400. Transfer rate 45MB/s WHY?

[Solved] Installed Samsung SSD into Lenovo T400. Transfer rate 45MB/s WHY?

Forum Storage : Flash Media - [Solved] Installed Samsung SSD into Lenovo T400. Transfer rate 45MB/s WHY?

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maxima120   07-18-2009 at 01:11:00 PM

Hi I have installed 128Gb Samsung SSD MMCQE28GFMUP into Lenovo T400. Lenovo has SATA with up to 3GB/s interface, SSD according to the manufacturer datasheet has 200-220 MB/s transfer rate.

I used Passmark software to measure my old HDD and the new SSD. The transfer rates for read and write are close to each other and for SSD it is arount 45 MB/s.

The BIOS SATA set to AHCI. The disk manufactured in Sep 08.

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Best answer from sub mesa
HDTune should, or ATTO.

Basically test on the filesystem, all those benchmarks that don't test on the filesystem may yield incorrect results (meaningless numbers).
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wuzy   07-18-2009 at 02:10:09 PM

If you just want useless raw throughput numbers, try benchmarks like HDTune and HDTach instead. That's usually where the advertised (sustained) transfer rate comes from.
A more meaningful real-world drive simulation benchmark that's still comparable would be PCMark Vantage (HDD suites). Applicable performance numbers to daily tasks.

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maxima120   07-18-2009 at 02:34:11 PM

Ok. I'll try what you suggest. But my point was that SDD throughput is +10% to the HDD throughput.

Although I can agree that test can be different but I thought two disks can be compared pretty accurate using same test however meaningless the absolute numbers are.... No?

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maxima120   07-28-2009 at 02:48:33 PM

HDTach doesnt work on my Windows7

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Bronze Storage badge sub mesa   07-28-2009 at 02:54:17 PM
Best answer

HDTune should, or ATTO.

Basically test on the filesystem, all those benchmarks that don't test on the filesystem may yield incorrect results (meaningless numbers).

------------------------------ ...man will occasionally stumble over the truth, but usually manages to pick himself up, walk over or around it, and carry on.
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maxima120   07-28-2009 at 03:22:21 PM

Yeah. that made huge difference. HDTune shows SSD Avg transfer rate 140Mb/s, my desktop Raid0 and Raid1 both have around 75-77.

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Bronze Storage badge sub mesa   07-28-2009 at 03:35:49 PM

Cheers. :)

------------------------------ ...man will occasionally stumble over the truth, but usually manages to pick himself up, walk over or around it, and carry on.
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