Currently Being ModeratedOct 30, 2013 10:49 AM (in response to Ian Amador)
Well, I dont know about the Fusion Drive, but my new rMBP takes about 10-15 seconds to boot up to both Mac and/or Windows 8.1. It boots up really fast. But then again I have the PCIe SSD and not the fusion drive.
If I am in Mac and restart to Windows. It takes about 15-18 seconds to shutdown and restart to Windows (all the way to the Desktop) and vice versa
Hope this helps.