Crossfire with onboard?

[cigarman]

I know nothing about cross-firing or sli, so excuse me if I sound stupid in this post. I want to know if it's possible to crossfire an on-board video with a PCIe 2.0x16 video card. The board has ATI Radeon HD 3300. The video card would be an ATI Radeon HD 4350.

Do both video chips have to be the same, like two 3300's or two 4350's?

 

[Rage_3K_Moiz]

Yes it is possible, but only with 780G and 790GX chipset motherboards. You can only use the HD 2400, HD 3450 and HD 3470 for this.

 

[FoReWoRd]

wouldn't any 2XXX or 3XXX work rage?

 

[Rage_3K_Moiz]

Nope, only those specific models.

 

[cigarman]

Thanks for both relies to my question. I would have thought any ATI card would've worked.

 

[cigarman]

So would it be better to crossfire with one of the three cards you mentioned or just get one of the latest cards and disable the onboard. The unit is basically an htpc. The onboard works fine for hi def output, but only in a situation where I attempt to do two things at the same time does it sometimes stutter a bit.

 

[Rage_3K_Moiz]

UVD gets disabled while running Hybrid Crossfire. So HD video acceleration will not take place.

For HTPC use, the HD 4350 or 4550 will be ideal.