[McG]

Hybrid CrossFire is not meant for the enthusiast, but we do think the technology will indirectly benefit enthusiasts in the future, hence our reason for talking about it. Hybrid CrossFire is achieved by utilizing one of AMD’s new integrated chipset GPUs (IGP) and one of their new video cards. That’s right; Hybrid CrossFire utilizes one video card plugged into your PCI-Express slot and is able to join forces with the GPU built into the motherboard chipset.

What you are seeing above is an AMD RS780 next-gen chipset that has a DX10 R600 derivative “GPU” integrated. The external discrete video card plugged into the primary PCI-Express slot is a next-gen RV620 GPU. It is a 55nm DX10.1 PCIe Gen. 2 part with 256MB of local GDDR3 memory. Unfortunately, the first incarnation of Hybrid Crossfire with the RS780 will only really work with the upcoming Radeon HD 3400 series GPUs. If you stick a Radeon HD 3400 card (the 3450 and 3470 will arrive early next year), both the integrated RV610 graphics and the Radeon HD 3400 will work in tandem during 3D games.

Izvor: [H]ard|OCP i AnandTech