X1800XT is at least a 625/1500MHz product.

Remember when we read that "Fudo" would run at 600/1400, well ATI has upped the ante so you'll get more MHz for your dollar with the card. And while this will still probably be only enough to tie with nVidia keep in mind that we're up to Catalyst 5.9 drivers and more importantly the X1800XT will be the mother of all overclocking cards, expect massive OC's from sites like Guru3D, [H]ard|OCP, and TweakTown for example.