crossfiring integrated graphics.

[mikemillard4]

Crossfiring integrated graphics between a mobo and the a10.

 

[de5_Roy]

what motherboard? can you post the model numbers of the parts?

 

[mikemillard4]

The a10 6800 and the a85v-pro

 

[de5_Roy]

The a10 6800 and the a85v-pro

do you mean the amd a10 6800k and asus f2a85-v pro?
if yes, the motherboard does not have an on board gpu. the gpu is in the a10 6800k, the motherboard has display outputs. if you use the two together, you'll be using the 7660D igpu in a10 6800k.
for crossfiring (amd dual graphics) you'll need a dual gfx compatible discreet gfx card like radeon hd 6570 or radeon hd 6670.

 

[mikemillard4]

One more question, are that the most powerful gpu I can use?

 

[de5_Roy]

One more question, are that the most powerful gpu I can use?

which one, the one in the a10 (7660D) or the discreet 'dual gfx'-able cards? you can't change the igpu in the apu. the apu is made with the cpu and the igpu together on the same silicon. you can disable it from the bios if you don't want to use it. then you'll have to ue a discreet gfx card.
as for discreet radeons, the amd radeon hd 6670 is the highest amd allows to 'dual graphics' with the a10 6800k. but if you want to use a standalone discreet gfx card without crossfire, there's really no limit. in the latter case, you'd be limited by budget and other factors.