Which boot is faster, bios, uefi or legacy?

Theoretically, UEFI mode must start fast, but this means that the boot hardware self-test is fast. If the graphics card and hard disk supporting UEFI are solid-state hard disks in GPT format, and then they are quickly started with win8 or win 10 system, this mode will definitely prevail. The legacy is the traditional bios+MBR startup mode, which takes a long time to start the hardware self-test. If it is win8 or win 10, it will start a quick start, and the start speed is also fast, but it is still worse than UEFI.