... 1.66 GHz Intel Atom D510 (dual core) 667 MHz FSB ...

http://www.logicsupply.com/products/d510mo?gclid=CNLVuZeulaACFSYaawodlmDQdg


It is informative and fun to read the comments at the bottom of the following
page

http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=3692

Robin Berglund

I have an Atom in my Azus EeePC net book and it has no trouble
with movies.

My old HP notebook has an older processor of unknown type I run
Rhino on. It does run hot. There never was a problem actually in the process
of doing dwg. Rendering on the other hand was rather slow until I expanded
the ram memory to 4 gig.

I suspect the amount of ram memory you have has far more to do with speed
as "modern" bloat ware is so large the processor has to roll code pages
in and out of memory. Therefore the more memory you have speeds up
the process greatly. IMHO a two Megahertz is not going to run large programs
noticeably faster than a one MegaHertz processor. Two cores however can help
and the latest Atoms have two cores.

Paul Lamar