And with an older chipset such as the nec that there is on the the Gigabyte P55A-UD4 the drive has even lower performance, so we can see that different chipsets will results in different speeds.
A couple of quick critiques of the review:
The "real-world" small file test isn't really a small file test; I tested the P10 with a backup of my website - proper small files - and you really see the performance dive. The Sandisk Extreme is a better all-round performer.
Not many people have a small website to backup to their flash drive.
I dont think that many people with a website will care much about backing up their website in a flash drive, I am sure that most of them have some other kind of backup and not a flash drive.
On your test did you use our RAM as a storage device? An SSD? A mechanical drive?
As you said, different chipsets will give different results, I used the intel ports on my tests.
The P10 wasn't compared with the best of the rest of the market. The Transcend JetFlash 780, Sandisk Extreme USB 3.0 and Kingston HyperX are in the same performance realm and almost half the price, in the UK at least. The Kingston is only available at 64GB plus sizes, however.
When those drives will be avlaible for a review you will see them reviewed, for the moment i can only comment on what i have tested.