I guess you read it wrong, 286 for 5830 and 326 for 5850
man, 5830 almost became mythical for being good for mining, but no, it's not faster than 5850 and the latter will stomp it any day at same or slightly lower clock.
Edit: a 5770 with 800 shaders can do 200mh/s and 1440 shaders does 236 is hardly believable.
I didn't exactly read it wrong, I was just being lazy. I took a survey of the 20 lowest-scored 5850s, not realizing there were 10 more beyond that. The average of all 30 5850 scores (which maxed out at 410 for an OC'd card) resulted in an average rate of
318.2 Mh/sBased on the available data of 24 entries, the 5830 has an average hash rate of
290 Mh/s That is not much less than the average 5850 rate. But then again, the price of the 5850 is just like its hash rate - just a bit more than the 5830.
Regarding the 5770, I don't think we've been talking about that one in this thread. Did you mean the 6790?