I can finally run Cruis'n USA/World at full speed

[MaximRecoil]

An AMD FX-57 will do it, at least under the circumstances that I tried it in, i.e. Mame32 v.100 with default options (which includes 44.1 KHz audio and frame skipping set to "draw every frame").

Occasionally it dips slightly under 100% (which you only notice with F11 enabled), but most of the time it is rock steady at 57/57 100%, especially with stuff like antivirus software and software firewalls and other unnecessary running processes turned off.

I've been waiting a long time to be able to play these two games at full speed; I used to play them a lot in the arcade.

BTW, I didn't have the money to burn on a genuine FX-57, but I do have a 3700+ which is the same San Diego core as the FX-57, along with the same 1 MB of L2 cache, with the only differences being that the FX-57 has an unlocked multiplier and a higher stock clock speed (2.2 GHz vs. 2.8 GHz). The 3700+ (~$200 for the 3700+ vs. ~$800 for the FX-57) overclocks easily (at least it did for me) to the 2.8 GHz speed of the FX-57. I did some benchmarks in SiSoftware Sandra and my results were nearly identical to, and in one test, actually exceeded by a fair amount, the results of the real FX-57 reference CPU.