336 servers in one rack

[Brian Atkins]

http://www.linuxgram.com/newsitem.phtml?sid=108&aid=12209

Using Transmeta CPUs:

"Up against your standard 1U server or server appliance, the Texans have
 reportedly clocked the thing at eight times the density, five-10 times the
 power savings - California, pay attention, it's supposedly 15 watts versus
 75 watts under load, seven watts versus 75 watts idle - six times lower
 operating costs and four times the number of web pages served per square
 foot"

"The 324 reportedly consumes 80% less power and generates 80% less heat at
 peak performance than traditional web servers."

the big downside is low CPU performance for the $$$$
-- 
Brian Atkins
Director, Singularity Institute for Artificial Intelligence
http://www.singinst.org/