A local retailer had a sale that made the price of the Patriot Signature 32 GB microSDHC Class 4 Flash Memory Card quite attractive.
However, after a quick search, it was apparent that this card it not a fast-performance product. In fact, some reviews suggest rather poor performances under certain circumstances (e.g. adapter issues). Since the price was so good, we've decided to take the plunge and purchase one to test ourselves.
After testing the memory card with different adapters, it seems like the card has an acceptable performance for sequential read and write (14.828 MB/s and 4.976 MB/s respectively). However, the card performed poorly on random read / write tests (about 3.4 MB/s for reads and 0.1 MB/s for writes). Furthermore, the type of microSD to SD adapter used does not affect the performance significantly.
For comparison purposes, the speed test results of a Kingston 2 GB microSD (made in Taiwan) card and a Samsung 2 GB microSD card were obtained. The Kingston card had a slightly better read performance than the Patriot card. However, the write performance was worse. The Samsung card had the worst read speed.
For the raw data, see the spreadsheet below:
Tests were performed using a Sony Vaio VGN-FZ485U laptop with Intel Core2 Duo T8100 CPU at 2.1 GHz, 4 GB of memory, running Windows 7 Enterprise Service Pack 1. The USB card reader used is the Siyoteam SY-568 USB 2.0 All in One Card Reader.
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