Bjorn3D has posted a review on the PowerColor X1600 XT & X1300 PRO video card
About a month ago I've reviewed a flagship card from PowerColor: X1800 XT with all the bells and whistles; that is Avivo, new memory bus and SM 3.0 support. Based on the new R520 core, ATI tried to climb up and reach G70 performance. In some cases it succeeded, but whether you like it or not it's losing the battle in a lot of scenarios. Comparing it to last year's X800 generation it does sport significant performance boost over the old high-end card however.PowerColor X1600 XT & X1300 PRO Review