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Real world performance is the most important aspect of a modern memory card. We put the ADATA Premier Pro UHS-I SDHC memory card through a variety of demanding tests to see if its synthetic benchmark results are representative of the real world performance that is available.
To eliminate any potential bottlenecks, we copied every folder and file from an ADATA SP300 mSATA SSD that is capable of over 250 MB/s sequential read and write performance, as detailed in our review of the drive that you can read here.
We used a stopwatch to measure the time taken to transfer the files in each test. Dividing the total folder size by the time taken to copy all of the files, we can deduce the average transfer speeds.
Test Results:
Our first test represented transferring the photos and videos taken while attending an event such as an air show, football match, theme park or even a holiday.
We used our folder that contained the 525 files, 31 of which were videos with the other 494 being 14 Megapixel JPG photos, created during the RIAT 2012 air show. The total folder size was 4,669 MB.
Transferring over 4.5GB worth of photos and videos in less than 2 minutes and 30 seconds shows that the ADATA Premier Pro UHS-I SDHC memory card can offer excellent time-saving benefits for professional and enthusiast photographers.
While the real world transfer rates aren't as remarkable as the card's synthetic speeds, averaging over 30 MB/s with a folder containing 525 files is still impressive performance.
For the second real world test, we used a folder that was 8,161 MB in size and contained 5,655 files spread across 1,369 sub-folders. This test was intended to outline the ADATA Premier Pro memory card's performance when transferring a variety of file types of varying sizes located in many different folders, simultaneously. This represents the demanding type of work load that users wanting a data-transferring SD card will put it through.
With such a demanding work load and continuously varying files, the transfer rates of ADATA's Premier Pro SDHC memory card dropped in comparison to the photo and video copying test. Nevertheless, copying the folder that was almost 8GB in size in a time of less than 6 minutes and 30 seconds is performance that most users would deem sufficient.
While these numbers may be much lower than the synthetic benchmarks' speeds, the performance is actually very good, when taking the folder's size and varied file nature into account.
