When is choosing real hardware preferable?

There are several situations where it may be more practical, and even required, to use real hardware instead of QEMU for testing and debugging, such as the following:

• When the software relies on specific hardware features, for example, a particular Video Processing Unit (VPU) or Graphics Processing Unit (GPU) feature
• When evaluating the software performance, QEMU may not be able to replicate the performance of real hardware

While QEMU can be a valuable tool for testing and debugging software, it is not always a perfect substitute for real hardware.