Buy a second 3870 or a 4850?

With the P965 chipset the 4850 would be the better option, The P965 has a 16x/4x Crossfre. With the 4X slot you could loose as much as 30% performance.

If you have a newer MB then your profile then the Xfire would be a option. Toms did a test on 4x/8x/16x PCIe slots and the 4X lost around 33%.

So If I was you I would get the 4850, Because that single card is going to be faster on all games. Crossfire is not supported by every game. Plus the 16X/4X crossfire on the P965 chipset is a nother reason.

1Haplo

the 4850 performs just like the 3870 X2 just with out the hassle.

Good point. I was just hoping to take the cheaper route and have x-fire bragging rights. I do have the same MB, but it is about time to upgrade/overhaul my entire system. I can always sell my 3870 and offset the costs to come out to about the money I would've spent in the first place. Thanks for your input.

Thanks for the chart. I was looking at tomshardware charts and the xfire 3870's and 4850 went tat for tat. 1 card is better overall if they are close so thats what I will probably go with. thanks for your input

That would give you bragging rights? To who?

Jebus 

Honestly, probably just to my self or probably to people who just know enough about computers to be somewhat impressed that I have a dual graphics setup. Its kind of like having a twin turbo setup on your car when you really only need one big turbo to go just as fast. Catch my drift?

Well, I didn't buy either rather I purchased an e8500 wolfdale instead. I felt that a better processor would give me a FPS boost that I was looking for as my e6400 just wasn't doing it for me anymore. I am running bios version 1.8 so I shouldn't have any problems with compatibility as version 1.8 supports wolfdale processors.