Some questions about Hybrid Crossfire

[Drenlin]

Hi all


I'm planning on building a rig using a 785G motherboard along with a Radeon 3450. I'm planning to overclock both of them. (not the best solution, but the 3450 was free) The problem is, there's not a lot of documentation on this. I'm trying to find out how the two interact, and have some questions that google and my home forums couldn't answer.

1- The IGP supports ATI Stream and UVD2, but the 3450 does not. Will I be able to use them? (I'm assuming no...)

2- If the IGP has Sideport memory, will that affect anything?

3- How will I go about overclocking them both? I'm assuming I should get them OC'd before enabling crossfire...?

4- Would I be better off by using a larger OC on the IGP and forgetting the 3450? Depending on the board, the 4200 is potentially capable of a >80% overclock on the stock cooler. This would simplify things, but It seems like I'd have a net loss in power.


Thanks for any replies
-John

 

[Drenlin]

nobody?

 

[jtisgeek]

nobody?

Sadly this doesn't make since get one of the very cheap video cards like the 5450 or even a 4350 both will be better than the crossfire with the on board.

 

[f4phantom2500]

http://www.tomshardware.com/reviews/amd-780g-chipset,1785-7.html

 

[Will Robinson]

lol wut?
Overclocking the onboard graphics and then Crossfiring it with a discrete card.:\
1.How are you planning to access the onboard chip to overclock it?
2.Why would you want to?