They do, under OS X. Under Windows, so I'm lead to believe, a stock PC Card is stuck at PCIe 1.1 without the resistor mod MVC does.
Ah ok. Thanks for the clarification. I don't use windows on the machine, so I didn't know.
Seems weird though, considering you should be able to use Nvidia's control panel and driver versions for that platform. But I don't know much there, considering I'm a Windows noob.