Feb. 06, 2007 – iFixit has released the first 802.11n Airport Extreme
benchmarks and disassembly. The photos and benchmarks are online at:

Benchmarks are on page two:

From the Guide, “The new base station is amazing. We achieved a 10x
performance boost, and a 3x usable range increase!” We achieved over
9 MB/s in short range lab testing with a MacBook Pro. Long range
testing was equally impressive. At 300 feet (with a building in the
way), we reached transfer rates of 500 KB/s.

About iFixit:

iFixit is the Mac+iPod do-it-yourself company. iFixit launched in
2003 and instantly became the leader in the Mac laptop part industry,
and introduced iPod parts in 2006. iFixit is dedicated to helping
people everywhere keep their Macs and iPods running longer. For more
information, visit: www.iFixit.com or call 1-866-61-FIXIT.