Here are some Benchmark results between Wine and Windows XP, Your mileage will vary depending on your Linux config, Wine version and Hardware. I plan to do a follow up roughly each six months to see what are rate of progression is and post the results here with +/- %'s.
For past results: [WWW] Wine: 20050419 vs XP ---------------------------------------------------------- Wine has the current lead on 67 tests Wine has a lag between 0.1 and 10.0 percent on 14 tests Wine has a lag between 10.1 and 20.0 percent on 9 tests Wine has a lag between 20.1 and 50.0 percent on 19 tests Wine has a lag of more than 50.1 percent on 21 tests Wine or XP aborted on 18 tests ----------------------------------------------------------
http://wiki.winehq.org/BenchMark-0.9.5