Not really, cards are always rating for READ speed and not write speed. However, what you see are the hardware limitation in the camera body.
Actually the specs on the website are "KOMPUTERBAY 64GB COMPACT FLASH CARD CF professional 1000X 140 MB/s
WRITE and 155MB/s
READ speed RAW Extreme 64 GB UDMA 7"
So why is no one getting close to that 140MB/s? A few people at least are getting into the triple digits. Mine are stuck in the 80's...
If you think it's the camera, check out the benchmark tests I did on my computer via a new card reader. It actually did a lot worse (on the left is my card, on the right is the website selling the cards with a "screenshot" of how they are supposed to perform. I used the same testing software.

Here is the second card, also performing much worse.
