If you really want to look at PS performance of between the current ATI cards... here's what it is...
9800>9700>9600>9500 (although I'm not sure if the 9600 would be better than the 9500... they use the same shaders though) > 5900>5800>5600>5200
Apparently.. I finally understood that the 5600/5200 are based off the 5800 shaders.. hence their performance are MUCH worse if you're trying to figure out how their performance to the 5900 (eg. if there was a slower 5900 version, they would be fastered than the 5600/5200 series)
PR = crap
War Against FUD
What is FUD? - http://www.geocities.com/SiliconValley/Hills/9267/fuddef.html