Do SD Card Speeds Matter?
SD cards are mainly used in phones, tablets, digital cameras, game consoles, and media players. Do SD card speeds matter? In most cases, they do matter. In addition, compared to the read speed, the write speed of an SD card is more important.
Why Do SD Card Speeds Matter for Cameras?
In general, the sequential read and write speed matter for a camera. The sequential read speed of the SD card mainly affects the preview and export of the photos. The sequential write speed affects the camera’s continuous shooting and video recording.
A high-speed writing card can make the camera continuously shoot more pictures and shorten the waiting time after the camera shoots continuously, especially if you use the RAW format.
In addition, a card with a high writing speed can withstand high bit rate video shooting. However, if you use a card with a low writing speed to shoot a high bit rate video, the video shooting may be suddenly interrupted or even not allowed.
This post shows you how to choose a right memory card for camera and lists some high-performance memory cards as recommendation.
Why Do SD Card Speeds Matter for Phones, Tablets, and Consoles?
In general, SD cards on phones, tablets, and consoles are mainly used to run apps and games. In this case, the random read and write speeds (especially the random write speed) matter for these devices. The random write speed will affect the app and game launch and running speeds.
This article will tell you how to pick an SD card for Nintendo Switch. If you need to expand storage space on your game console, check out this guide in 2019.
How to See the SD Card Speeds?
Some SD cards only mark the sequential read speed. How to see the sequential write speed and random read/write speeds? The way is to find the speed class markings on the SD card. The speed class stands for the actual minimum sequential write speed.
The SD card speed class markings and their minimum sequential write speeds are shown in the following picture.
How to see the random read and write speeds of an SD card? There are also Application Performance Classes for SD cards. The Application Performance Class markings and speeds are shown in the following picture.
MiniTool Partition Wizard is a functional tool. It can format SD card FAT32, fix SD cards, and recover data from SD cards. It can also migrate OS and clone hard drives. If you have these needs, you can download it to have a try.