Performance
The performance has been tested on the Intel USB 3.0 controller and the Panasonic USB 3.0 SD card reader.
As I already mentioned, performance may vary and really depends on various conditions as transfers are never constant. However maximum declared speed of Exceria Pro is 260MB/s read and 240MB/s write.
ATTO Disk Benchmark
The maximum read and write results in ATTO are slightly lower than declared by Toshiba. On our test platform we achieved maximum results of 235MB/s read and 215MB/s write. Each run results were slightly different and as we see. In this case test file size makes huge difference.
It does not change the fact that these results are simply great.
CrystalDiskMark 3.0.1
Crystal Disk Mark tests both sequential and random transfers. The sequential transfer results are similar to what we found in ATTO. Even though we can see 222MB/s maximum read then every couple of tests we could see up to 235MB/s maximum bandwidth.
What is worth to take a closer look are random transfers. Less important for a SDHC card but results are better than what we can see on our hard disk drives.
AS SSD Benchmark
The AS SSD tests are similar to Crystal Disk Mark and it is generally never used to check flash memory except SSD but we are running this test as a torture test to check stability during long work. In this case Toshiba card passed every test flawlessly.
Anvil’s Storage Utilities
Anvil’s tests are also showing us not only the sequential and random transfers, but also the access time. Once again the results are great for a SDHC card. I do not believe that there is any faster card on the market right now, we certainly have not tested any.
Even though we could not reach the maximum declared transfers, the performance of Toshiba Exceria Pro SDHC card is simply amazing.