Apple claims a powermac is 90% faster than a PC in photoshop while www.robgalbraith.com says the opposite. post YOUR results and we'll see.
I haven't heard a claim like that from Apple for some time and I don't see it in the article. Its probably 5 years since that was true in even the loosest sense of the word. What apple used to do was base that claim off a SINGLE test. They'd run 10 different tests and if the apple lost in 9 of 10 they'd say the apple was faster then put some fine print at the bottom of the page to say what it was faster at.