Sort of. It's the exact same thing as Nvidia optimus. Linux calls it DRI-PRIME or PRIME offload. Get it =P ?
Big, display-less GPU renders frame, image is copied into VRAM of smaller GPU with a display. Smaller GPU draws image to screen.
Most of the gamer laptops do this. There's no physical link between the display and the big GPU. I believe the mobile cards enable a second DMA engine that is usually soft locked on GeForce to handle the transfer.
Tomb Raider running 1024x768 30FPS on a card half the cost of 3Dfx Voodoo1 https://www.youtube.com/watch?v=5GMesT4WKzI
It could even run up to 60FPS at 640x480, the best hardware platform running Tomb Raider, and only one allowing over 30FPS.
Big, display-less GPU renders frame, image is copied into VRAM of smaller GPU with a display. Smaller GPU draws image to screen.
Most of the gamer laptops do this. There's no physical link between the display and the big GPU. I believe the mobile cards enable a second DMA engine that is usually soft locked on GeForce to handle the transfer.