Pretty much all the new 9800 Pro cards come with an R360 core, most with an XT PCB.
If you buy from a store that moves a lot of inventory (a big place like Frys, or Best Buy is a good bet, and big online vendors like newegg are even better in this sense so long as you stay away from older refurbished hardware), you are much more likely to get a newer card with an XT PCB, and an R360 core.
Because big vendors like newegg sell a lot of hardware, they are restocking constantly, and almost always have 'fresh', recently manufactured products in stock and on the shelves.