Our tests reveal that the slower processor and disk make the MacBook Air quite a bit slower than the other portables in Apple’s product line. The MacBook Air was also outpaced in our tests by the its closest desktop cousin, the ultra-compact 1.83GHz Mac mini Core 2 Duo.
Since I read about how slow the 1.8 inch hard drives are I’ve been worried about the performance. Now the first tests seem to confirm my suspicion that it does in fact severely limit the machine. Which really is a shame!