Finally I obzavolsya high-speed USB 3.0 card reader and was able to compare the speed of existing MicroSD cards for me.
Memory cards for a long time exceeded the speed capabilities USB 2.0, therefore, to read and write them on your computer at full speed, you need a memory card reader USB 3.0, connected to the appropriate port. I bought for 200 rubles Aliekspresse reader ORICO CRS12 (bought for $ 2.95 in the official store, But now they're over. Elsewhere, there were only green for $ 2.99).
The card is inserted into the card reader and the end slightly sticking out of it.
Via CrystalDiskMark 3.0.3 X64 tested the existing MicroSD cards for me. To speed up the testing mode only "Seq" in the file to 50 MB with one test cycle (for a rough estimate of the speed is quite enough).
Results (MB / s, the first day of the reading speed, the second - write speed):
32GB SanDisk Extreme 43.7 40.1
32GB SanDisk 43.6 33.2
32GB Eaget 55.6 15.5
16GB SanDisk 81.5 65.5
16GB Toshiba 82.4 37.4
Dorogushchuju card SanDisk Extreme I was given as a gift to the GoPro Hero 3 camera when I bought it in New York in the shop B & H Photo Video in 2014.
SanDisk 32GB card I bought a couple of years ago.
Chinese Eaget card I bought at the Christmas sale this year for $ 3.5
16-gigabyte card to buy a month ago in Citylink (they were the least expensive, 270 and 280 rubles).
I wonder how fleshpamyati advanced technology. Modern basic and cheap SanDisk card is significantly faster than almost five years ago the most expensive cards.
Kopek Chinese Eaget read quickly, but slowly being written. SanDisk 32-gigabyte card two years ago, significantly faster than the Chinese, but slowly advanced card to 16 GB.
And the bad news. I bought SanDisk 16 GBAs cheap and not very fast card (in the parameters - 80 MB / sec), and Toshiba 16GBAs faster (100 MB / sec). As a result, it was found that they have read almost the same speed as the recording speed from Toshiba is significantly lower.
© 2019 Alex Nadozhin