PNY Class 10 card inconsistent write speed

Docrwm · 07-18-2011, 05:18 PM

Originally posted by DragonLord

The PNY card has been returned and replaced with a SanDisk Extreme 30MB/s 16GB SDHC card. The SanDisk card proved to be far faster; the buffer cleared in half the time it took for the Kingston Class 4 card under a variety of conditions. Furthermore, copying speeds from the computer to the card were consistent, without any pausing or hesitation in the writing process. In the future, I will only choose from SanDisk, Lexar, and Kingston. I do not want unreliable or inconsistent performance.

--DragonLord

Glad it worked out for you.

George Lama · 07-25-2011, 02:21 PM

I have 3 PNY Pro 8 GB Class 10 cards I can test with. I also have various other class 6 and 4 cards to compare to.

I would probably consider running the test on a Linux box instead of Windows. I've seen Windows do some funky things with transfer rates so I wouldn't put it past the OS being the cause of the problem.

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07-18-2011, 05:18 PM	#16
Docrwm Veteran Member Join Date: Sep 2010 Location: Somewhere in the Southern US Photos: Gallery \| Albums Posts: 12,285	Originally posted by DragonLord The PNY card has been returned and replaced with a SanDisk Extreme 30MB/s 16GB SDHC card. The SanDisk card proved to be far faster; the buffer cleared in half the time it took for the Kingston Class 4 card under a variety of conditions. Furthermore, copying speeds from the computer to the card were consistent, without any pausing or hesitation in the writing process. In the future, I will only choose from SanDisk, Lexar, and Kingston. I do not want unreliable or inconsistent performance. --DragonLord Glad it worked out for you.

07-25-2011, 02:21 PM	#17
George Lama Veteran Member Join Date: Jun 2007 Location: Buffalo/Rochester, NY Photos: Albums Posts: 1,133	I have 3 PNY Pro 8 GB Class 10 cards I can test with. I also have various other class 6 and 4 cards to compare to. I would probably consider running the test on a Linux box instead of Windows. I've seen Windows do some funky things with transfer rates so I wouldn't put it past the OS being the cause of the problem.