Memory cards come in all sorts of formats and capacities but arguably, the most popular types are Secure Digital (SD) and Type I CompactFlash (CF). If youâ€™ve recently bought a digital camera, one of these was probably bundled with your new toy. However, more often than not the capacity of that card is pretty low â€“ 32MB for example â€“ rendering it useless when it comes to storing a decent number of shots and/or movies.
This leaves the consumer with only one option â€“ to purchase an additional memory card with a greater capacity, and preferably, one with high read and write performance. But how can one tell if one card is actually faster than another?
In order to help you make a choice weâ€™ve gathered a selection of 2GB SD and 4GB CF cards from a number of popular manufacturers and subjected them to a series of tests. The cards tested here are shown below along with their identifying serials numbers/codes: