I have read somewere the 7800 can do AA, AF and HDR, but can't do HDR if AA is enabled. The 1900xtx can enable all three ??? I have heard. Guru's post me a link please or expalian. I'm preaty sure I read this somewere but been reading so much about cards I forget. I'm not a fanboy, just would like the best card when I buy in near future. This is why I am hearing the x1900 is better. ?? If I bought today. I know wait for 7900 to see what's realy up. Thanks Crashman. I know you'll probally read this.