What can I crossfire a 5830 with?

[Ogre Choker]

Obviously another 5830 or 5850....But aren't the 6xxx series just renamed 5xxx's? BARTs or some such?

 

[Maziar]

6xxx aren't re-badged versions of 5xxx.
68xx perform pretty much like 58xx series but 69xx cards outperform all 58xx cards.

 

[shane799]

You have to go with another of what you have. You could pair it with a 5850 or 5870 but they scale down to match your 5830 so you would be paying extra money for no added performance. There is a chart on the AMD website that you can go and have a look at it shows what goes with what.

 

[shrkbay]

EVERYTHING... lol no, 5830 is most logical what you should get for CF if you have a 5830, you can only match 5830 to 5850, 5830 and 5870, but they will be limited to 5830's performance levels