Hard to explain, its slightly bigger. The emblem part now folds around the cap, is not an insert anymore, so the emblem is slightly bigger and no more gray plastic ring. Looks much better, but only slightly different. Just put them on the same side and no one will ever know.
Edit: Seems like there is two versions, they probably just gave me the wrong one: (Long number is part number)
05 Hub Cap with clipped-on plaque 4 36136768640 $9.95
05 Hub cap with chrome edge 4 36136783536 $9.95