And are they comparing the RPi to the Beagle BOARD or Beagle BONE? The Bone is around $80, the BOARD is something like $200 (IIRC)… So not exactly an apples to oranges comparison in price either… I would EXPECT the $200 board to be a lot faster!
(Edit, just looked up the Bone specs, yeah, they're talking about the BBone)… Still $90 vs $35, I would HOPE the Bone is faster given the higher price point.
No, you're wrong. Please do not make such baseless assumptions.
Both the beagleboard and the beaglebone currently have a Cortex A8 running at 720mhz. And the beaglebone is far too new to be the one they used.
The clockspeed of the beagleboard has changed over the years. Only the new C4 revision has a 720mhz clock. See here: http://elinux.org/BeagleBoard#Clocking
My bet is that they are comparing a 600mhz Cortex A8 to their 700mhz armv11.
In this case, the RPI being 20% slower seems like it would be spot on.
EDIT: to add some context- Even though that article was released yesterday, I heard about those benchmarks when RPI was still in alpha status. The 720mhz version wasn't out then.