New Video Speed Class for SD Cards

February 29th, 2016
New Video Speed Class for SD Cards

The newly announced Video Speed Class brings a new speed category to SD cards, enabling the continued use of this kind of media for today’s latest video applications.

Recently announced by the SD Association, the new Video Speed Class adds to the current range made up of the Speed Class and UHS Speed Class, with capture rates of up to 90MB/s. As was the case with the previous two classes, there is certain overlapping between them, all of which are better illustrated in the table below.

table jpegfix

The writing speeds of 60 and 90MB/s at the higher end of the new Video Speed Class, as well as the interleaving writing capabilities to multiple files, makes it ideal for the latest video features already starting to make an appearance in the market. These include 8K resolution, 3D recording, high frame rates and multiple video streams necessary to capture 360-degree video.

This new Video Speed Class also claims to address previous “asymetrical” writing characteristics of SD storage, providing an even more consistent write performance necessary for video use.

In addition, the SD Association’s white paper states that the way this new class makes use of erase blocks makes these new cards compatible with further advances in NAND technology in the future.

It is yet unclear what manufacturer will be the first to adopt this new protocol either at the media or device side of things. What the pricing of these cards will be in comparison with already available over 90MB/s SD cards in the UHS Speed Class – such as the SanDisk 128GB Extreme Pro – is also as of yet unknown.

The size and price have made the SD form factor ubiquitous in everyday life, for both professionals and consumers alike. We for one are glad to see the format will stick around for another few years.

What do you think? Leave your comments below!

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Jeff Jones
Jeff Jones
Member
March 2nd, 2016

Seems like the scale is a bit antiquated right out of the gate. The real question is how do you rate one of these 300MB/s cards.

http://www.bhphotovideo.com/c/product/1090748-REG/lexar_lsd64gcrbna2000r_pro_2000x_uhs_2.html

 Joe Ogiba
Joe Ogiba
Member
March 2nd, 2016
Reply to  Jeff Jones

The 2000x Lexar UHS-II SDXC card should be rated at V90 since it is 3x faster than the fastest UHS-I U3 card that will be rated V30.

Jeff Jones
Jeff Jones
Member
March 2nd, 2016
Reply to  Joe Ogiba

It’s closer to something like 8-10 times faster than a V30 card, isn’t it? In practice I get about 260MB/s on the write speed.

 Joe Ogiba
Joe Ogiba
Member
March 2nd, 2016
Reply to  Jeff Jones

You are getting confused with minimum (V90 is 90MB/s minimum) and maximum write speed. I have three 2000X Lexar UHS-II SDXC cards that I use with my Samsung NX1 and I bet Lexar will change the rating to V90 in the future.

Jeff Jones
Jeff Jones
Member
March 3rd, 2016
Reply to  Joe Ogiba

Not really confused on that. What I was saying in my original comment is that V90 as a “best rating” is too limited. They need more divisions above that so that the Lexar 633x, 1000x and 2000x are not all rated at V90.

Jeff Jones
Jeff Jones
Member
March 3rd, 2016
Reply to  Jeff Jones

Well scratch the 633x which wouldn’t be a V90 card. But the 1000x and 2000x should.

 Joe Ogiba
Joe Ogiba
Member
March 3rd, 2016
Reply to  Jeff Jones

I bet the 1000x will be rated V60.

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