Evaluation of Toshiba Extreme Overspeed SD Card for High-end Photographers

IT 168 Evaluation Now both SLR and mirrorless cameras have entered the 4K era. Not only the improvement of pixels, but also the development of creative level and production requirements have greatly increased users' demand for memory cards. With the popularity of video today, it's time to change a wave of memory cards. Today, I will bring you the evaluation of Toshiba EXCERIA PRO series. Which part of people can it satisfy?

There are many kinds of memory cards. At present, the most commonly used are SD card and MICRO SD card. For SD cards, they are mostly used for cameras or camcorders, and they often need to be plugged in and out. Therefore, in addition to transmission speed, quality is also the key point to consider when purchasing.

For many people, UHS- 1 is familiar, which means that the minimum writing speed can reach 10MB/S, so what does U3 mean? U3 means that the reading speed can be up to 90MB/S per second, which is 9 times of the card speed of the 10 class we used before. It is precisely because of this high-speed performance that we can be competent for the storage of our common cameras and high-speed continuous shooting cameras.

The front of the card gives complete parameters: the U3 card with the highest reading speed of 95MB/S belongs to Toshiba's EXCERIA PRO series, and the capacity I got this time is 32GB, which may not be enough for people who take pictures outside all day, but it is definitely more than enough for high-pixel cameras to take pictures outside.

It can be seen from the back of the card that the origin of this memory card is Japan.

At present, Tmall has sales. Click to view details. 16G price 69 yuan, 32G price 105 yuan, 64G price 239 yuan.

First, we will test the camera. This time, the camera we chose is Canon's 5D3, with about 22.3 million pixels. First, we choose the RAW format to shoot continuous shooting.

▲ Use with 5D3.

Due to the huge amount of data in RAW format photos, after taking about 13 photos in high-speed continuous shooting mode, the continuous shooting speed will be slowed down due to the image writing speed.

▲ continuous shooting in RAW format.

Then adjust the photo format to the largest JPG format. After this experiment, it is found that continuous shooting is always coherent and writes at a sufficient speed.

▲ continuous shooting in ▲JPG format.

When shooting video, I put 5D3 in the highest bit rate format, and the recording has been smooth, the writing speed meets the data storage, and the recording will not be suspended halfway.

In order to better interpret the performance and detailed data of this high-speed memory card, we tested this memory card with professional software. CrystalDiskMark is a computer hard disk detection tool. The simple and easy-to-operate interface allows you to test your storage device at any time. You can choose the size and number of storage devices, and you can also test the reading and writing speed.

▲CrystalDiskMark test results

In the test, the reading speed reached 85.84MB/s and the writing speed reached 73.93MB/s, which basically met the official marking speed.

ATTO disk benchmark is a simple and easy-to-use software for detecting disk transfer rate, which can be used to detect the read-write rate of mobile disks such as hard disk, U disk and memory card. The software uses data test packages of different sizes. Test the data packet at 0.5K, 1.0K and 2.0K respectively until it reaches 8192.0kb.. After the test, the data is represented in the form of histogram. It can well explain the influence of different file size ratios on disk reading and writing speed.

▲ATTO disk benchmark test results

In the test, the test results of 16GB and 32GB capacity are consistent, the reading speed reaches 89.6MB/s, and the writing speed reaches more than 72.6MB/s, which is basically consistent with the previous test results with CrystalDiskMark.

Generally speaking, the speed of this Toshiba Extreme EXCERIA PRO series card can fully meet the needs of photographers and video enthusiasts, not only shooting high-pixel cameras, but also shooting 4K videos. I used this SD card to shoot videos all day. There were no jams and crashes, and the stability was very high. The price of the 32G version of this SD card is 105 yuan, and the price of the 64G version is 239 yuan. Compared with users with professional needs, this price is completely acceptable. Toshiba itself is a big brand, and its quality is trustworthy.