Maximum Write Speeds SanDisk Ultra and Extreme series show a clear differentiation in their write speeds. The SanDisk Ultra reaches a maximum write speed of 80MB/s, which is suitable for standard photography and 1080p video recording. In contrast, the SanDisk Extreme offers a higher write speed of up to 90MB/s. What is the difference between SanDisk Extreme and Ultra? SanDisk Extreme products are designed for users who require high-performance storage for demanding applications such as professional photography and videography, while SanDisk Ultra products are geared toward consumers who need reliable, everyday storage for their digital files. Based on 20,787 user benchmarks for the SanDisk Extreme Pro USB 3.1 and the Ultra, we rank them both on effective speed and value for money against the best 639 USBs. SanDisk Extreme vs Extreme Pro features: Both share V30 video speed. Extreme maximum capacity of 256 GB for the Extreme, and the Pro, 1TB. Both are waterproof and shockproof. SanDisk Extreme has a maximum write speed of 70 MB/s, the Extreme Pro of 90 MB/s. Both SD cards are U3 and Class 10. Not every memory card is created equal, and the main difference between SanDisk Ultra and Extreme is the video recording capabilities. The SanDisk Extreme records up to 4K video, whereas the SanDisk Ultra performs best with 1080p HD video. Apart from video recording, the cards also differ in size options and write speeds. SanDisk Ultra vs Extreme video capabilities. The ability to record high quality video is the main difference between SanDisk Ultra vs Extreme memory cards. SanDisk Extreme can record 4K video and is the memory card I recommend to buy when you shoot 4K video. SanDisk Ultra vs Extreme: Differences The capacity of SanDisk Ultra microSD is 8GB-512GB. SanDisk Extreme SD card is from 8GB-1TB. Sandisk Ultra vs Extreme: How Do They Compare? 1. Read/Write Speeds. One key difference between Sandisk Ultra and Extreme is the write speeds. A SanDisk Ultra card has 2. Storage Capacity. The storage capacity refers to the amount of data you can save on your memory card. Both the 3. Storage Pros: More on the Affordable side More storage compared to SanDisk Extreme Supports 1080p FHD video Cons: Lower video speed class Not suitable for recording 4K video Slower read/write speed SanDisk Extreme SanDisk Extreme is much more powerful compared to Ultra. Higher sequential read/write speed makes it more suitable for recording 4K videos. Although the Extreme is an improvement over the SanDisk Ultra, it is still only the next step down from the Extreme PRO, which is the top of the line for SanDisk memory cards. So be careful not to mistake the SanDisk Extreme for the SanDisk Extreme PRO when you purchase one. qXxRuT.