Amd Dual graphics Hybrid crossfire

[garygoesmeow]

If I got the new a10 with 7660D and Crossfired with a 6670 gddr5 Does the 6670 gimp down to ddr3 with the 7660d?

 

[stickg1]

Never really thought of that. It should still use the the GDDR5 on the card. Most of the GPUs they suggested for hybrid crossfire for Llano had DDR3 though. I haven't seen an official support list yet for Trinity. If I were you I would still get the GDDR5 version of the 6670 because you're better safe than sorry. Also I might wait til AMD releases an official list of supported hybrid crossfires.

 

[Wisecracker]

Go with the DDR3 HD6670.

 

[bloc97]

A hybrid crossfire isn't a complete crossfire...

The APU and the GPU isn't merged, they are functioning separately, that is why a Hybrid Crossfire doesn't always give a big performance boost.

The APU would be doing the textures, and the GPU would be doing the Other things...
100% efficiency isn't always achieved. Even in some games, the hybrid crossfire actually diminishes performance.

The APU would keep its DDR3 Shared RAM, and the GPU would use its GDDR5 RAM...

-Hope it helps!
Bloc97

 

[Wisecracker]

Not sure what that is all about. AMD does dual-graphics in **alternate frame rendering.**

The SIMD engine array on the Trinity APU utilizes Turks cores sharing DDR3 system memory. You want your discreet card clocks and memory to 'sync-up' as closely as possible to the APU.

The HD6670 utilizes Turks cores. It is easier for the discreet card with DDR3 to sync-up memory clocks with the APU as opposed to DDR5.