TrustedReviews posted a review of ATI X1900 CrossFire

Less than four months since we reviewed the Radeon X1800 XT, ATI has followed up with a successor, the R580 now bestowed with the title the X1900. This means that the X1800 has had one of the shortest ever runs as a flagship graphics product, beaten only by NVIDIA’s ill-fated and ill-rated, GeForceFX 5800. However, as ATI would have had two teams working on new products, it’s likely that the R580 team were simply on-time, whereas the R520 team, were very late. Even more remarkably it seems as though ATI hasn’t entirely paper launched and its cards should be available to buy as you read this.

ATI X1900 CrossFire Review