On Apr 6, 2013, at 13:49 , Charles Robinson <[email protected]> wrote:
> I picked up a couple of Sandisk SDHC 16GB "Ultra" cards which are rated as > Class 10 and 30MB/sec > > I already have a Sandisk SDHC 16GB "Extreme" card which is rated Class 10 and > 30MB/sec > > What's the difference? > I ran a benchmark and the difference is "night and day". The Class-10 "30MB/s" Extreme card has a 30MB/s write rate, and a 45MB/s read. The Class-10 "30MB/s" Ultra card has a 10MB/s write rate, and a 44.5MB/s read. One gets what one pays for, I guess! Good enough, though, as a "backup spare" when I run out of space for whatever reason. Benchmark images below: http://charles.robinsontwins.org/photos/2013/sandisk_extreme.png http://charles.robinsontwins.org/photos/2013/sandisk_ultra.png -Charles -- Charles Robinson - [email protected] Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
