The links i sent you are about true quantum computers, not emulators, they work with close to subzero coolers. have a closer look at what they are offering.
There are also some shows in the informatics scene where companies from different countries shows their state of the art quantum computers.
For sure they are not miniaturized, and maybe this is why you think they are emulators, but i don't think you can emulate a quantum computer. Check also MIT quantum computer.
As far as I know, the only difference between a quantum computer and an intel or amd CPU is the bit size of the registers.
An intel/amd x86 CPU is limited to binary bits. Its registers have 64 bits and each bit can only represent two binary values 0's and 1's.
A quantum computer has a bitsize larger than binary. Rather than being limited to 0's and 1's, its registers can hold greater values.
1 quantum bit could represent values from 0 to 1,000,000,000 or greater. This gives it a much higher base information density in comparison to existing CPU's.
Higher data density should translate to greater computational capacity.
There are a lot of emulators available which emulate the functionality of quantum bits on normal intel/amd hardware.
Search for "qubit emulator" there are a lot of them.
I think a true quantum computer should represent a big jump in computational capacity over existing architecture.
If there is no real technical advantage, its probably an emulator of some type.