FAQ:Performance
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Why do some games run so slowly on my system?
How can I get games to run faster?
There are occasional speed problems.
Does MAME benefit from SMP (symmetric multiprocessing) / HT (Hyper-Threading) / dual cores?
Why is MAME so slow? These games ran at less than 200 MHz, and my CPU is 2 GHz!
You are comparing apples and oranges.
MAME emulates every function of the emulated CPU(s), video hardware, audio hardware, and anything else on the board (including potentially IDE or SCSI harddisks and CD-ROMs). This is simply not something that can be done quickly in a high-quality fashion.
