Overclocking: Difference between revisions

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! scope="col"|Emulation Overclock

! scope="col"|Overclock levels

|-

|[[Atari Jaguar emulators|Atari Jaguar]]

|13.295 MHz/26.59 MHz

|{{✓}}

|{{na}}

|-

|[[Nintendo Entertainment System emulators|NES]]

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Line 20:

|{{✓}}

|?

|{{na}}

|-

|[[Super Nintendo emulators|SNES]] (Main CPU)

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|{{✓}}

|4.1 -7.6 Mhz

|4.1-7.6 Mhz

|-

|[[Super Nintendo emulators|SNES]] (Super FX 1)

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Line 38:

|{{✓}}

|40-60 Mhz,

|40-60 Mhz

|-

|[[Sega Genesis emulators|Sega Genesis]]

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|{{✓}}

|13.1-25.4 MHz<ref name="kyorune"/>

|-

|[[Sega Dreamcast emulators|Sega Dreamcast]] (SH4 CPU)

|200 MHz

|{{✓}}

|220MHZ-240MHz

|-

|[[PlayStation emulators|PlayStation]]

|33.8 MHz

|{{✓}}<ref name="kraut">~~https://www.youtube.com/watch?v=~~HapnSOseDfw</ref>

|{{✓}}<ref name="kraut">See {{YouTubeVideo|HapnSOseDfw|here}}</ref>

|{{✓}}

|66Mhz<ref name="kraut"/>

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|28.6 MHz*

|{{✗}}

|{{Y}}

|-

|{{?}}

|-

|[[Nintendo 64 emulators|Nintendo 64]]

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|{{✓}}

|{{na}}

|-

|[[Nintendo Switch emulators|Switch]]

|1020 MHz (CPU), 768 MHz (GPU), 1600 MHz (RAM)

|{{Y}}

|1785 MHz (CPU), 921 MHz (GPU), 2133 MHz (RAM)

|-

|}

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==MAME==

By default [[MAME]] allows you to change the clock speed of the systems it emulates (including consoles) to anything between 50% to 250% of the original clock speed, the only requirement is that you enable cheats for that game/system.

==Atari Jaguar==

Overclocking is [https://forums.atariage.com/topic/109944-overclocked-jaguar/ possible on real hardware]. [[BigPEmu]] supports the clock scale and Blitter speed changing under speed settings.

==NES==

Overclocking is possible on real hardware, but doing so also speeds up the audio unless you're using a special hardware mod like the HiDefNES which does allow for overclocking without changing the audio pitch<ref name="HiDefNESoverclock">~~https://youtu.be/~~QnQuBN3iYVA~~?t=4m8s~~</ref>.

Overclocking is possible on real hardware, but doing so also speeds up the audio unless you're using a special hardware mod like the HiDefNES which does allow for overclocking without changing the audio pitch<ref name="HiDefNESoverclock">See {{YouTubeVideoTime|QnQuBN3iYVA|248|here}}</ref>.

[[FCEUX]] as of 2.2.3 includes an overclocking option which works by adding additional scanlines to the PPU loop. This method doesn't cause audio distortion. It is found under Config > Timing.

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The first version of the chip, commonly referred to as simply "Super FX", is clocked with a 21 MHz signal, but an internal clock speed divider halves it to 10.5 MHz. Later on, the design was revised to become the Super FX GSU-2; this, unlike the first Super FX chip revision, is able to reach 21 MHz.

The SFX chip can be overclocked on real hardware or emulation with fewer issues than overclocking the CPU. However, tests have shown that overclocking can increase the speed of the game, in addition to increasing the frame rate and removing slowdown.<ref name="Dragon50hztest">~~https://www.youtube.com/watch?v=~~tfNI3HpUt-4</ref>

The SFX chip can be overclocked on real hardware or emulation with fewer issues than overclocking the CPU. However, tests have shown that overclocking can increase the speed of the game, in addition to increasing the frame rate and removing slowdown.<ref name="Dragon50hztest">See {{YouTubeVideo|tfNI3HpUt-4|here}}</ref>

{| class="wikitable" style="text-align:center;"

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===List of games that can take advantage of overclocking===

~~<pre>~~

* ''A Bug's Life''

A Bug's Life

* ''Aidyn Chronicles - The First Mage''

Aidyn Chronicles - The First Mage

* ''Armorines - Project S.W.A.R.M.''

Armorines - Project S.W.A.R.M.

* ''Big Mountain 2000''

Big Mountain 2000

* ''Carmageddon''

Carmageddon

* ''Conker's Bad Fur Day''

Conker's Bad Fur Day

* ''Destruction Derby 64''

Destruction Derby 64

* ''Disney's Donald Duck - Goin' Quackers / Donald Duck - Quack Attack''

Disney's Donald Duck - Goin' Quackers / Donald Duck - Quack Attack

* ''Duck Dodgers Starring Daffy Duck / Looney Toons - Duck Dodgers''

Duck Dodgers Starring Daffy Duck / Looney Toons - Duck Dodgers

* ''Earthworm Jim 3D''

Earthworm Jim 3D

* ''Extreme-G''

Extreme-G

* ''Extreme-G XG2''

Extreme-G XG2

* ''F1 Racing Championship''

F1 Racing Championship

* ''F-1 Pole Position 64''

F-1 Pole Position 64

* ''Gex 3 - Deep Cover Gecko''

Gex 3 - Deep Cover Gecko

* ''GoldenEye 007''

GoldenEye 007

* ''Hot Wheels Turbo Racing''

Hot Wheels Turbo Racing

* ''Human Grand Prix - New Generation''

Human Grand Prix - New Generation

* ''Jet Force Gemini / Star Twins''

Jet Force Gemini / Star Twins

* ''Jeremy McGrath Supercross 2000''

Jeremy McGrath Supercross 2000

* ''Kobe Bryant's NBA Courtside''

Kobe Bryant's NBA Courtside

* ''Madden Football 64''

Madden Football 64

* ''Madden NFL 99-2002''

Madden NFL 99-2002

* ''Mario Kart 64 (Multiplayer and some tracks only)''

Mario Kart 64 (Multiplayer and some tracks only)

* ''Milo's Astro Lanes''

Milo's Astro Lanes

* ''Monaco Grand Prix - Racing Simulation 2''

Monaco Grand Prix - Racing Simulation 2

* ''Monster Truck Madness 64''

Monster Truck Madness 64

* ''NASCAR 99/2000''

NASCAR 99/2000

* ''NBA In the Zone 98 / NBA Pro 98''

NBA In the Zone 98 / NBA Pro 98

* ''Off Road Challenge''

Off Road Challenge

* ''Perfect Dark''

Perfect Dark

* ''Quake II''

Quake II

* ''Racing Simulation 2''

Racing Simulation 2

* ''Rakuga Kids''

Rakuga Kids

* ''Rayman 2 - The Great Escape''

Rayman 2 - The Great Escape

* ''Roadsters Trophy''

Roadsters Trophy

* ''San Francisco Rush - Extreme Racing (Multiplayer only)''

San Francisco Rush - Extreme Racing (Multiplayer only)

* ''San Francisco Rush 2049 (Multiplayer only)''

San Francisco Rush 2049 (Multiplayer only)

* ''South Park Rally''

South Park Rally

* ''StarCraft 64''

StarCraft 64

* ''Starshot - Space Circus Fever''

Starshot - Space Circus Fever

* ''Super Robot Spirits''

Super Robot Spirits

* ''Taz Express''

Taz Express

* ''The New Tetris''

Tom Clancy's Rainbow Six

* ''Tom Clancy's Rainbow Six''

Tonic Trouble

* ''Tonic Trouble''

Toy Story 2

* ''Toy Story 2''

Transformers - Beast Wars Transmetal

* ''Transformers - Beast Wars Transmetal''

Turok 2 - Seeds of Evil / Violence Killer - Turok New Generation

* ''Turok 2 - Seeds of Evil / Violence Killer - Turok New Generation''

V-Rally Edition 99

* ''V-Rally Edition 99''

WCW vs. nWo - World Tour

* ''WCW vs. nWo - World Tour''

World Cup 98

* ''World Cup 98''

~~</pre>~~

==GameCube/Wii==

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On real hardware, overclocking is possible using [http://djky2k3.tripod.com/psx_oc.html this modification].

On emulators, [https://github.com/SonofUgly/PCSX-Reloaded/releases ~~this~~ modified build] of [[PCSX-Reloaded|PCSX-R]] as well as [http://ngemu.com/threads/pcsxr-pgxp.186369/ this fork] allow for overclocking, though most games will break past 1.5x clock speed. Recent builds of Beetle PSX (the libretro fork of Mednafen's PS1 core) also support overclocking, by way of removing timing penalties instead of increasing clock speed.

On emulators, [[Duckstation]] allows you to overclock the CPU up to 1000% or 10x and also supports CD speed up and seek speed up. [https://github.com/SonofUgly/PCSX-Reloaded/releases This modified build] of [[PCSX-Reloaded|PCSX-R]] as well as [http://ngemu.com/threads/pcsxr-pgxp.186369/ this fork] allow for overclocking, though most games will break past 1.5x clock speed. Recent builds of Beetle PSX (the libretro fork of Mednafen's PS1 core) also support overclocking, by way of removing timing penalties instead of increasing clock speed. EPSXe also natively supports overclocking up to 4x. Hydro Thunder benefits a lot from it, running at a constant 30 FPS without any other issues.

==PS2==

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==Sega Genesis==

The original hardware can be overclocked leading to faster/smoother gameplay.~~<ref>http://www.youtube.com/watch?v=SVrElANZg2M</ref>~~

The original hardware can be overclocked leading to {{YouTubeVideo|SVrElANZg2M|faster/smoother gameplay}}.

Most Genesis emulators don't allow overclocking. The [[Genesis Plus GX]] developer, for instance, says that implementing overclocking is "not easy to add without potentially break other things. <ref>https://code.google.com/p/genplus-gx/issues/detail?id=223</ref>

But recently, Genesis-Plus GX libretro core now supports CPU overclocking by up to 500%. <ref>https://docs.libretro.com/library/genesis_plus_gx/#emulation-hacks</ref>

[http://aamirm.hacking-cult.org/www/regen.html Regen] allows overclocking in the dev build version.<ref>http://segaretro.org/Regen</ref> Games with sprite flicker, like Altered Beast, and games with some slowdown, like Rambo III or Mega Man: The Wily Wars, play perfectly with Regen's "Overclock M68000" setting at 732 (1.5x original speed). The game speed and audio are unaffected by overclocking.

BlastEm and HazeMD also allow for overclocking but neither are really recommended for normal usage.

==Sega Dreamcast==

Its SH-4 CPU can be overclocked from [https://www.retrorgb.com/easier-dreamcast-overclock-mod.html 200] to either 220 MHz (which is safer) or [https://www.racketboy.com/retro/overclock-your-dreamcast 240 MHz] (which isn't recommended). Some games which may struggle the original console in heavier scenes (like Soldier of Fortune) or don't run at full speed (like Sega Rally which runs at 55 vblanks/sec instead of 60) will work smoother. [[Flycast]] supports overclocking, and Sega Rally runs at full 60 vblanks/sec in [[Redream]].

==3DO==

[[Phoenix (emulator)|Phoenix]] and standalone Windows version of [[4DO]] allows up to 400% of the original 3DO clock speed, making some low frame rate titles such as [[wikipedia:Doctor_Hauzer|Doctor Hauzer]] and [[wikipedia:Killing_Time_(video_game)|Killing Time]] more playable. ~~But since~~ this function ~~have theoretical possibility~~ to break (like incorrect physic and unplayable speed) games, the [[~~libretro~~]] ~~version~~ of [[~~4DO~~]] ~~does not seem~~ to ~~contain overclocking features~~.

[[Phoenix (emulator)|Phoenix]] and standalone Windows version of [[4DO]] allows up to 4.0/400% of the original 3DO clock speed, making some low frame rate titles such as [[wikipedia:Doctor_Hauzer|Doctor Hauzer]] and [[wikipedia:Killing_Time_(video_game)|Killing Time]] more playable. Also possible to overclock CPU in [[Opera]]<ref>https://docs.libretro.com/library/opera/#core-options</ref> - a [[libretro]] fork of 4DO (in options in core's quick menu after game launch, up to 4.0/50.00Mhz).

The possibility of this function to break games (like incorrect physic and unplayable speed) is unknown.

==Nintendo DS==

In DSi and 3DS systems, it is possible to run classic DS games at higher clocks by the use of [[nds-bootstrap]]. This hypervisor has the option of running classic DS games in DSi mode, effectively overclocking the CPU from 67MHz to 133MHz. This change can remove slowdowns and improve framerate in some games, but can add instability in several others.

==Xbox==

On real hardware some people change Xbox CPU with Tualatin Pentium III and upgrade RAM to 128MB (just like [[Development Kits]]) for {{YouTubeVideoTime|c66hfqw4SKc|456|low frame rate games like Half-Life 2}}.

For emulators, it's possible to use 128MB RAM and also overclock emulated CPU thanks to this [https://github.com/xemu-project/xemu/pull/1467 pull request] for xemu.

==See also==

* [[Modding consoles/flashcarts]]

==References==

@@ Line 9: / Line 9: @@
 ! scope="col"|Emulation Overclock
 ! scope="col"|Overclock levels
+|-
+|[[Atari Jaguar emulators|Atari Jaguar]]
+|13.295 MHz/26.59 MHz
+|{{✓}}
+|{{✓}}
+|{{na}}
 |-
 |[[Nintendo Entertainment System emulators|NES]]
@@ Line 14: / Line 20: @@
 |{{✓}}
 |{{✓}}
-|?
+|{{na}}
 |-
 |[[Super Nintendo emulators|SNES]] (Main CPU)
@@ Line 20: / Line 26: @@
 |{{✓}}
 |{{✓}}
-|4.1 -7.6 Mhz
+|4.1-7.6 Mhz
 |-
 |[[Super Nintendo emulators|SNES]] (Super FX 1)
@@ Line 32: / Line 38: @@
 |{{✓}}
 |{{✓}}
-|40-60 Mhz,
+|40-60 Mhz
 |-
 |[[Sega Genesis emulators|Sega Genesis]]
@@ Line 39: / Line 45: @@
 |{{✓}}
 |13.1-25.4 MHz<ref name="kyorune"/>
+|-
+|[[Sega Dreamcast emulators|Sega Dreamcast]] (SH4 CPU)
+|200 MHz
+|{{✓}}
+|{{✓}}
+|220MHZ-240MHz
 |-
 |[[PlayStation emulators|PlayStation]]
 |33.8 MHz
-|{{✓}}<ref name="kraut">https://www.youtube.com/watch?v=HapnSOseDfw</ref>
+|{{✓}}<ref name="kraut">See {{YouTubeVideo|HapnSOseDfw|here}}</ref>
 |{{✓}}
 |66Mhz<ref name="kraut"/>
@@ Line 49: / Line 61: @@
 |28.6 MHz*
 |{{✗}}
-|{{✗}}
+|{{Y}}
-|-
+|{{?}}
 |-
 |[[Nintendo 64 emulators|Nintendo 64]]
@@ Line 69: / Line 81: @@
 |{{✓}}
 |{{na}}
+|-
+|[[Nintendo Switch emulators|Switch]]
+|1020 MHz (CPU), 768 MHz (GPU), 1600 MHz (RAM)
+|{{Y}}
+|{{Y}}
+|1785 MHz (CPU), 921 MHz (GPU), 2133 MHz (RAM)
 |-
 |}
@@ Line 75: / Line 93: @@
 ==MAME==
 By default [[MAME]] allows you to change the clock speed of the systems it emulates (including consoles) to anything between 50% to 250% of the original clock speed, the only requirement is that you enable cheats for that game/system.
+==Atari Jaguar==
+Overclocking is [https://forums.atariage.com/topic/109944-overclocked-jaguar/ possible on real hardware]. [[BigPEmu]] supports the clock scale and Blitter speed changing under speed settings.
 ==NES==
-Overclocking is possible on real hardware, but doing so also speeds up the audio unless you're using a special hardware mod like the HiDefNES which does allow for overclocking without changing the audio pitch<ref name="HiDefNESoverclock">https://youtu.be/QnQuBN3iYVA?t=4m8s</ref>.
+Overclocking is possible on real hardware, but doing so also speeds up the audio unless you're using a special hardware mod like the HiDefNES which does allow for overclocking without changing the audio pitch<ref name="HiDefNESoverclock">See {{YouTubeVideoTime|QnQuBN3iYVA|248|here}}</ref>.
 [[FCEUX]] as of 2.2.3 includes an overclocking option which works by adding additional scanlines to the PPU loop. This method doesn't cause audio distortion. It is found under Config > Timing.
@@ Line 105: / Line 126: @@
 The first version of the chip, commonly referred to as simply "Super FX", is clocked with a 21 MHz signal, but an internal clock speed divider halves it to 10.5 MHz. Later on, the design was revised to become the Super FX GSU-2; this, unlike the first Super FX chip revision, is able to reach 21 MHz.
-The SFX chip can be overclocked on real hardware or emulation with fewer issues than overclocking the CPU. However, tests have shown that overclocking can increase the speed of the game, in addition to increasing the frame rate and removing slowdown.<ref name="Dragon50hztest">https://www.youtube.com/watch?v=tfNI3HpUt-4</ref>
+The SFX chip can be overclocked on real hardware or emulation with fewer issues than overclocking the CPU. However, tests have shown that overclocking can increase the speed of the game, in addition to increasing the frame rate and removing slowdown.<ref name="Dragon50hztest">See {{YouTubeVideo|tfNI3HpUt-4|here}}</ref>
 {| class="wikitable" style="text-align:center;"
@@ Line 135: / Line 156: @@
 ===List of games that can take advantage of overclocking===
-<pre>
+* ''A Bug's Life''
-A Bug's Life
+* ''Aidyn Chronicles - The First Mage''
-Aidyn Chronicles - The First Mage
+* ''Armorines - Project S.W.A.R.M.''
-Armorines - Project S.W.A.R.M.
+* ''Big Mountain 2000''
-Big Mountain 2000
+* ''Carmageddon''
-Carmageddon
+* ''Conker's Bad Fur Day''
-Conker's Bad Fur Day
+* ''Destruction Derby 64''
-Destruction Derby 64
+* ''Disney's Donald Duck - Goin' Quackers / Donald Duck - Quack Attack''
-Disney's Donald Duck - Goin' Quackers / Donald Duck - Quack Attack
+* ''Duck Dodgers Starring Daffy Duck / Looney Toons - Duck Dodgers''
-Duck Dodgers Starring Daffy Duck / Looney Toons - Duck Dodgers
+* ''Earthworm Jim 3D''
-Earthworm Jim 3D
+* ''Extreme-G''
-Extreme-G
+* ''Extreme-G XG2''
-Extreme-G XG2
+* ''F1 Racing Championship''
-F1 Racing Championship
+* ''F-1 Pole Position 64''
-F-1 Pole Position 64
+* ''Gex 3 - Deep Cover Gecko''
-Gex 3 - Deep Cover Gecko
+* ''GoldenEye 007''
-GoldenEye 007
+* ''Hot Wheels Turbo Racing''
-Hot Wheels Turbo Racing
+* ''Human Grand Prix - New Generation''
-Human Grand Prix - New Generation
+* ''Jet Force Gemini / Star Twins''
-Jet Force Gemini / Star Twins
+* ''Jeremy McGrath Supercross 2000''
-Jeremy McGrath Supercross 2000
+* ''Kobe Bryant's NBA Courtside''
-Kobe Bryant's NBA Courtside
+* ''Madden Football 64''
-Madden Football 64
+* ''Madden NFL 99-2002''
-Madden NFL 99-2002
+* ''Mario Kart 64 (Multiplayer and some tracks only)''
-Mario Kart 64 (Multiplayer and some tracks only)
+* ''Milo's Astro Lanes''
-Milo's Astro Lanes
+* ''Monaco Grand Prix - Racing Simulation 2''
-Monaco Grand Prix - Racing Simulation 2
+* ''Monster Truck Madness 64''
-Monster Truck Madness 64
+* ''NASCAR 99/2000''
-NASCAR 99/2000
+* ''NBA In the Zone 98 / NBA Pro 98''
-NBA In the Zone 98 / NBA Pro 98
+* ''Off Road Challenge''
-Off Road Challenge
+* ''Perfect Dark''
-Perfect Dark
+* ''Quake II''
-Quake II
+* ''Racing Simulation 2''
-Racing Simulation 2
+* ''Rakuga Kids''
-Rakuga Kids
+* ''Rayman 2 - The Great Escape''
-Rayman 2 - The Great Escape
+* ''Roadsters Trophy''
-Roadsters Trophy
+* ''San Francisco Rush - Extreme Racing (Multiplayer only)''
-San Francisco Rush - Extreme Racing (Multiplayer only)
+* ''San Francisco Rush 2049 (Multiplayer only)''
-San Francisco Rush 2049 (Multiplayer only)
+* ''South Park Rally''
-South Park Rally
+* ''StarCraft 64''
-StarCraft 64
+* ''Starshot - Space Circus Fever''
-Starshot - Space Circus Fever
+* ''Super Robot Spirits''
-Super Robot Spirits
+* ''Taz Express''
-Taz Express
+* ''The New Tetris''
-Tom Clancy's Rainbow Six
+* ''Tom Clancy's Rainbow Six''
-Tonic Trouble
+* ''Tonic Trouble''
-Toy Story 2
+* ''Toy Story 2''
-Transformers - Beast Wars Transmetal
+* ''Transformers - Beast Wars Transmetal''
-Turok 2 - Seeds of Evil / Violence Killer - Turok New Generation
+* ''Turok 2 - Seeds of Evil / Violence Killer - Turok New Generation''
-V-Rally Edition 99
+* ''V-Rally Edition 99''
-WCW vs. nWo - World Tour
+* ''WCW vs. nWo - World Tour''
-World Cup 98
+* ''World Cup 98''
-</pre>
 ==GameCube/Wii==
@@ Line 197: / Line 217: @@
 On real hardware, overclocking is possible using [http://djky2k3.tripod.com/psx_oc.html this modification].
-On emulators, [https://github.com/SonofUgly/PCSX-Reloaded/releases this modified build] of [[PCSX-Reloaded|PCSX-R]] as well as [http://ngemu.com/threads/pcsxr-pgxp.186369/ this fork] allow for overclocking, though most games will break past 1.5x clock speed. Recent builds of Beetle PSX (the libretro fork of Mednafen's PS1 core) also support overclocking, by way of removing timing penalties instead of increasing clock speed.
+On emulators, [[Duckstation]] allows you to overclock the CPU up to 1000% or 10x and also supports CD speed up and seek speed up. [https://github.com/SonofUgly/PCSX-Reloaded/releases This modified build] of [[PCSX-Reloaded|PCSX-R]] as well as [http://ngemu.com/threads/pcsxr-pgxp.186369/ this fork] allow for overclocking, though most games will break past 1.5x clock speed. Recent builds of Beetle PSX (the libretro fork of Mednafen's PS1 core) also support overclocking, by way of removing timing penalties instead of increasing clock speed. EPSXe also natively supports overclocking up to 4x. Hydro Thunder benefits a lot from it, running at a constant 30 FPS without any other issues.
 ==PS2==
@@ Line 211: / Line 231: @@
 ==Sega Genesis==
-The original hardware can be overclocked leading to faster/smoother gameplay.<ref>http://www.youtube.com/watch?v=SVrElANZg2M</ref>
+The original hardware can be overclocked leading to {{YouTubeVideo|SVrElANZg2M|faster/smoother gameplay}}.
 Most Genesis emulators don't allow overclocking. The [[Genesis Plus GX]] developer, for instance, says that implementing overclocking is "not easy to add without potentially break other things. <ref>https://code.google.com/p/genplus-gx/issues/detail?id=223</ref>
+But recently, Genesis-Plus GX libretro core now supports CPU overclocking by up to 500%. <ref>https://docs.libretro.com/library/genesis_plus_gx/#emulation-hacks</ref>
 [http://aamirm.hacking-cult.org/www/regen.html Regen] allows overclocking in the dev build version.<ref>http://segaretro.org/Regen</ref> Games with sprite flicker, like Altered Beast, and games with some slowdown, like Rambo III or Mega Man: The Wily Wars, play perfectly with Regen's "Overclock M68000" setting at 732 (1.5x original speed). The game speed and audio are unaffected by overclocking.
 BlastEm and HazeMD also allow for overclocking but neither are really recommended for normal usage.
+==Sega Dreamcast==
+Its SH-4 CPU can be overclocked from [https://www.retrorgb.com/easier-dreamcast-overclock-mod.html 200] to either 220 MHz (which is safer) or [https://www.racketboy.com/retro/overclock-your-dreamcast 240 MHz] (which isn't recommended). Some games which may struggle the original console in heavier scenes (like Soldier of Fortune) or don't run at full speed (like Sega Rally which runs at 55 vblanks/sec instead of 60) will work smoother. [[Flycast]] supports overclocking, and Sega Rally runs at full 60 vblanks/sec in [[Redream]].
 ==3DO==
-[[Phoenix (emulator)|Phoenix]] and standalone Windows version of [[4DO]] allows up to 400% of the original 3DO clock speed, making some low frame rate titles such as [[wikipedia:Doctor_Hauzer|Doctor Hauzer]] and [[wikipedia:Killing_Time_(video_game)|Killing Time]] more playable. But since this function have theoretical possibility to break (like incorrect physic and unplayable speed) games, the [[libretro]] version of [[4DO]] does not seem to contain overclocking features.
+[[Phoenix (emulator)|Phoenix]] and standalone Windows version of [[4DO]] allows up to 4.0/400% of the original 3DO clock speed, making some low frame rate titles such as [[wikipedia:Doctor_Hauzer|Doctor Hauzer]] and [[wikipedia:Killing_Time_(video_game)|Killing Time]] more playable. Also possible to overclock CPU in [[Opera]]<ref>https://docs.libretro.com/library/opera/#core-options</ref> - a [[libretro]] fork of 4DO (in options in core's quick menu after game launch, up to 4.0/50.00Mhz).
+The possibility of this function to break games (like incorrect physic and unplayable speed) is unknown.
+==Nintendo DS==
+In DSi and 3DS systems, it is possible to run classic DS games at higher clocks by the use of [[nds-bootstrap]]. This hypervisor has the option of running classic DS games in DSi mode, effectively overclocking the CPU from 67MHz to 133MHz. This change can remove slowdowns and improve framerate in some games, but can add instability in several others.
+==Xbox==
+On real hardware some people change Xbox CPU with Tualatin Pentium III and upgrade RAM to 128MB (just like [[Development Kits]]) for {{YouTubeVideoTime|c66hfqw4SKc|456|low frame rate games like Half-Life 2}}.
+For emulators, it's possible to use 128MB RAM and also overclock emulated CPU thanks to this [https://github.com/xemu-project/xemu/pull/1467 pull request] for xemu.
+==See also==
+* [[Modding consoles/flashcarts]]
 ==References==