Not entirely. Depends on the OS. Android is always improving in their emulation. Saturn being a prime example as systems unable to play it can now. Its about the coding. Even n64 plays differently depending on what you use. This will definitely play many things others can't. Many demos on YouTube already show that. Given time and users it'll be one of the best next to the shield tv... Which is rumoured to get a new version this year.
I know what you mean, that there is always an overhead, it's a matter of how much. For example is a particular instruction doesn't exist in hardware, then you have to software emulate it, and hence it takes a lot of time. In this case it should be much easier.. or less work .. For example We're not doing a x86 to Arm RISC core... We're doing a similar generation arm RISC core to similar gen arm RISC core.
Yes it would, you need to read about how emulation works. Emulation doesn't run the original machine code directly, you need the equivalent of several times the processing power of the original hardware to emulate the hardware in software; all of this needs to be done on a CPU.
Ordered looking forward to a bit of AI
Huh! Says shipping from the 29th but the one I ordered is out for delivery today already...