AMD APU Multi GPU?

[T3Kgamer]

Hey so I've recently acquired a newer apu system (fm2+) and I have another radeon 7000 series lying around and i know that it's less powerful than the apu but i would like to test out some cross-fire if possible but I don't have a DP or DVI cable is there a way to use the apu video out instead of the dgpu?

shoot almost forgot the specs if you want to know
CPU: A8 7600
IGPU: R7 Graphics
DGPU: Radeon 7000 series? (that's all it says in device manager)

RAM: Balistix Sport 8G DDR3

MB: Biostar somethingsomething it has a 16x pcie3 that's all i know

[R3DOPS]

Choose the GPU or the APU. Not both. It wont work but its nice to have if one day you GPU dies and you wont have a dead pc you can still use it. 

[T3Kgamer]

1 minute ago, R3DOPS said:

Choose the GPU or the APU. Not both. It wont work but its nice to have if one day you GPU dies and you wont have a dead pc you can still use it. 

But i've heard you can crossfire the apu's with a similar spec'd gpu

[Moress]

1 minute ago, R3DOPS said:

Choose the GPU or the APU. Not both. It wont work but its nice to have if one day you GPU dies and you wont have a dead pc you can still use it. 

You can run and APU and GPU in crossfire but Im not sure which ones are compatible

[Moress]

From reading the 7750 would be the gpu you would want to crossfire. From there idk. 

[T3Kgamer]

2 minutes ago, Moress said:

From reading the 7750 would be the gpu you would want to crossfire. From there idk. 

okay i think this is a 7450 so a little performance loss but i can always overclock i suppose. i'm not really doing it for a dedicated rig i'm just curious what it would be like in games and stuff

 

[R3DOPS]

oh yah you can sorry

[Aereldor]

24 minutes ago, Moress said:

From reading the 7750 would be the gpu you would want to crossfire. From there idk. 

 

31 minutes ago, T3Kgamer said:

But i've heard you can crossfire the apu's with a similar spec'd gpu

 

The technology used to run APU iGPUs and low-end dGPUs in tandem is called 'Dual Graphics'. I think there's a pane for it in the Radeon control panel.

[it_dont_work]

http://www.amd.com/en-us/innovations/software-technologies/technologies-gaming/dual-graphics

Quote

AMD Desktop Dual Graphics Solutions

A-SERIES APUS	A-Series Name	APU Graphics Brand	Recommended Graphics Card Pairings* Brand
	AMD A10 78x0 APUs	AMD Radeon™ R7	AMD Radeon™ R7 250
	AMD A10 6xx0 Series	AMD Radeon™ HD 8670D	AMD Radeon™ HD 6570, HD 6670
	AMD A10 7700K	AMD Radeon™ R7	AMD Radeon™ R7 240
	AMD A8 76x0	AMD Radeon™ R7	AMD Radeon™ R7 240
	AMD A8 6x00 Series	AMD Radeon™ HD 8570D	AMD Radeon™ HD 6570, HD 6670
	AMD A6 6x00 Series	AMD Radeon™ HD 8470D	AMD Radeon™ HD 6450

*May not be applicable to all product and graphics device pairings. For more information if AMD Dual Graphics is supported on your configuration please contact the manufacturer.

So by the amd site, they recommend an r7 240, or another r7 series card. Amd crossfire doesn't always require the same gpu, but sometimes others within the same series will also work.

[T3Kgamer]

okay so i unplugged my gaming desktop and plugged this in to my monitor i've found that it's a 7470 and it was last supported in windows xp 32 bit but that's not going to stop me the 8470 is just a rebrand i'm going to flash the bios and hope for the best

 

Edit: okay that was short lived hope i can't find a bios for a 8470 if anyone has this card can you upload the bios please

 

Edit2: This list has compatible card bios here if you have any of these cards please upload the bios if you can
P.S. You can get a copy of your bios from gpu z

 

Edit3: ignore edit 1&2 i found it it's "unverified"