I have moved a VMWare Workstation machine which was created in a 32-bit intel single processor system running VMware workstation 7 to a different system with a 64 bit AMD multiprocessor and running Vmware Workstation 8..
I have read in this website a person with a similar problem but he moved from AMD to Intel, and, according to I have just read, no issues are involved.
In my case, a message appears when I power up the virtual machine in the destination physical host (AMD 64 bits, 2 microprocessors):
"THE VENDOR OF THE PROCESSOR IN THIS VIRTUAL MACHINE IS NOT THE SAME AS THE VENDOR OF THE PROCESSORS IN THE MACHINE ON WHICH THE VIRTUAL MACHINE STATE WAS SAVED. You may attempt to resume this virtual machine , but doing so may result in unpredictable behavior."