Well it's interesting to see somebody has done this, however, benchmarks with the video and sound disabled aren't really representative of a real world use case...
> ChoccyHobNob has released some RasPi benchmarks today with current MAME, showing the > performance increases across the generations of Raspberry Pi's. Be sure to check it > out! > > Says ChoccyHobNob: > There are a lot of accusations about MAME being slow, about how it is a documentation > project, not an exercise in performance tuning. Most people seem to think that a 20 > year old version of MAME is the best you can hope for out of a Raspberry Pi. I’m here > to say that’s not the case. If you set your expectations at a reasonable level, you > tweak your settings in a sensible way, and you overclock wherever you can, you will > probably be pleasantly surprised. > ... > MAME benchmarks are run without using the display or sound devices, this keeps the > benchmarks purely about MAME’s performance, and tries to take any bottlenecks with > the host system out of the loop. In the case of the Raspberry Pi, the GPU gives the > performance a pretty good beating, meaning that games need to run quite a bit faster > than 100% to be playable. > > http://choccyhobnob.com/articles/benchmarks-for-mame-on-raspberry-pi/
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