Sony Unveils World's Fastest SD Card (amateurphotographer.co.uk)

At CP+2017, Sony announced the SF-G UHS-II SD card that features read and write speeds of 300MB/s and 299 MB/s, respectively, which makes it the fastest SD card in the world. Amateur Photographer reports: Available in 32GB, 64GB or 128GB from March 2017, all versions of the cards are compatible with Sony's free file rescue software, for recovering lost content. Pricing has yet to be revealed. Alongside the SF-G series, Sony has also introduced a new memory card reader, the MRW-S1, due for release in April. It features an in-built SuperSpeed USB port for cable-free PC connection, so that your files can be copied faster than by using the slower SD slot on a PC. [From the press release:] "'As the continuous shooting of higher-resolution images and adoption of 4K video with DSLR and mirrorless camera increases, the inherent need for larger, faster and more reliable cards becomes apparent. Thanks to the SF-G series, we continue to show our commitment to providing a full range of extremely high performance media devices to professional photographers and enthusiasts, maximizing their camera performances,' said Romain Rousseau, European Product Marketing Manager."

Comments

Re: What about random read performance?

[KiloByte]

As bad as their random-read performance is, their random-WRITE performance is usually much, MUCH worse.

You get a massive speed increase if you switch to a better filesystem: btrfs or f2fs.

git reset --hard: 3m45s btrfs, 3m55s f2fs, 12m30s ext4, 16-18m xfs (huge variance)
"./configure && make -j4 && make test" of a shit package with only ~2MB of persistent writes: f2fs 95s, btrfs 97s, xfs 120s, ext4 122s

(class-4 card in a Pine64)

And almost none do their own wear-leveling, so a Linux swapfile can literally max out the lifetime writes of a microSD card in 1-3 months

Not SD but eMMC: Samsung's fancy-schmancy eMMC cards are apparently made by someone no one told about the write endurance problem: I've been running Debian archive rebuilds and other I/O-heavy loads since early 2013 on a 64GB card ($89) in an Odroid-U2, and despite me heavily overcommitting memory (ie, heavy swapping a lot of the time), the card is still going strong.