/products/raspberry-pi/b/blog/posts/rp2040-sd-card-spi-benchmark-revisitedFor Pi Day, I tried benchmarking the SD card interface on a new SparkFun RP2040 mikroBUS Development Board that I had just gotten - RP2040 SD Card SPI Benchmark . I was somewhat disappointed in the results - around 140KB/Sec Write and R...en-USTelligent Community 12https://community.element14.com/products/raspberry-pi/b/blog/posts/rp2040-sd-card-spi-benchmark-revisitedSun, 27 Mar 2022 18:18:45 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:6590c782-1b80-4302-a83b-97df116fe94emp21000<p>You really have to read the spec sheets, with all the marketing names, you can&#39;t figure out the speed.&nbsp; Ultra is slower than Extreme Plus?&nbsp; How fast is Extreme?&nbsp; Crazy.</p><img src="https://community.element14.com/aggbug?PostID=23297&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/raspberry-pi/b/blog/posts/rp2040-sd-card-spi-benchmark-revisitedSun, 27 Mar 2022 18:04:58 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:6590c782-1b80-4302-a83b-97df116fe94eDAB0<p>An interesting range of values for a simple IO device.</p> <p>Clearly you need to test and verify SD card performance for you application.</p><img src="https://community.element14.com/aggbug?PostID=23297&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">