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| style="text-align: center;"|13.1-25.4 MHz<ref name="kyorune"/>
|-
| style="text-align: center;"|[[PlayStation emulators|PlayStation]]
| style="text-align: center;"|33.8 MHz
| style="text-align: center;"|Yes<ref name="kraut">https://www.youtube.com/watch?v=HapnSOseDfw</ref>
| style="text-align: center;"|66Mhz<ref name="kraut"/>
|-
| style="text-align: center;"|[[Sega Saturn emulators|Sega Saturn]]
| style="text-align: center;"|28.6 MHz*
| style="text-align: center;"|No
| style="text-align: center;"|-
|-
| style="text-align: center;"|[[Nintendo 64 emulators|Nintendo 64]]
| style="text-align: center;"|93.75 MHz
| style="text-align: center;"|Yes<ref name="n64oc">http://www.gamesx.com/misctech/n64oc.htm</ref>
| style="text-align: center;"|125-187.5 Mhz<ref name="n64oc"/>
|-
| style="text-align: center;"|[[Neo Geo emulators|Neo Geo]]
| style="text-align: center;"|12 MHz
| style="text-align: center;"|Yes<ref name="neooc">http://www.neo-geo.com/forums/showthread.php?158016-68K-s-guide-to-overclocking-your-Neo-Geo-AES</ref>
Only MAME has an option to change the main CPU frequency, which requires you to enable cheats. MAME SNES emulation is very demanding by default and activating the overclock only makes it worse. It is more stable than the real hardware while overclocked and won't exhibit the same issues, but it is still very unstable especially if you adjust the frequency multiple times. It also does not allow you to go over 200% clock speed, which isn't enough to fully get rid of slowdowns in some games.
The latest builds of all SNES9x Libretro [[Snes9x]] libretro cores can overclock by reducing the number of emulated CPU/memory access cycles from 6, 8, and 12 to either 4, 5, and 6 (Compatible) or 3, 3, and 3 (Max) respectively. Just for comparison, that means the Max option is effectively 7.16 MHz. Gameplay is not sped up (assuming the game is not in a constant state of some slowdown, to begin with, like Out of This World) and the issues experienced on real hardware are not present, though stability will vary depending on the game and which option you use. Also to note, some games may work better with the Max option rather than Compatible, as appears to be the case for Mega Man X1 which has a bit of graphical corruption under very specific conditions when using the Compatible option, so try both if you encounter issues.
===Super FX chip===
==N64==
Some emulators like the [[Libretro|libretro]] port of [[Mupen64Plus]] have an overclocking option called "VI Refresh", and 1964 UltraFast (a very old fork of 1964) have an option to overclock the CPU.
Some games (see the list below) can take advantage of overclocking and improves frame rate, while most others (such as Super Mario 64) have built-in frame rate limiter and unaffected by overclocking.<ref>http://forum.pj64-emu.com/showpost.php?p=51810&postcount=6</ref><ref>http://www.emucr.com/2011/02/1964-ultrafast-v3.html</ref>
==3DO==
Standalone Windows version of [[4DO ]] allows up to 400% of the original 3DO clock speed, making some low frame rate titles such as Doctor Hauzer more playable. The libretro version of 4DO does not seem to contain overclocking features.
==References==
