Here comes a new challenger!
http://www.rage3d.com/articles/amd_powerxpress4_asif_rehman_interview/
http://www.notebookcheck.net/AMD-PowerXPress-4-0-aka-BACON-vs-Nvidia-Optimus.55204.0.html
Same deal as Optimus: A GPU wired through an IGP. No mux.
First laptops featuring this seem to be the Dell Vostro 3550 (6630M) the
HP dv6/dv7 (6490M?/6770M). The BACON driver situation for Sandy+Radeon
on Windows is currently being documented and there have been some
switching problems for the HP laptops.
On the AMD+Radeon side of things, almost nothing is known about BACON.
An upcoming Llano laptop (1 of 11) from HP is apparently going to be a
beast. A 6750M+6520G Hybrid Crossfire and dynamically switching laptop.
Current fglrx support for PowerXpress, radeon, or vga_switcheroo are
said not to work in enabling the discrete GPU for any meaningful use.
Given this, there will be a need for data collection tools and possibly
new scripts (call it BaconBits or extend Bumblebee).
- Eric
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