I know what Brian said and i'm not denying that the tour pros are set to "better specs" but i'm telling you tiger's ball at it's normal construction is exactly 100% the same ball you can buy at retail sans any "hand picking."
All balls have to pass tests and i have played all kinds of tour products:
irons
drivers
tour only shafts
tour only balls that don't make retail
tour issued balls of pro v1's, nikes, taylormades, etc
Most of the time the tour stuff is not RADICALLY different (of the same model) no matter what any people want to hype it up.
Sometimes drivers have different CG's more optimized for higher swing speed higher ball speed tour pros than their retail counterparts and this can affect launch angle and spin. Similar with irons BUT to less of an extent unless it's a special model that was made "to look" like the retail for marketing purposes only.
Balls are no different; sometimes you end up with a tour only ball that is slightly tweaked that never makes it to retail (go check out the approved ball list and see how many are on there) and at times those particular balls can be different than others but be labeled ALMOST EXACTLY the same as a retail ball. Some maybe that spin less and have hotter cores (similar to a distance ball) and thus goes further.