¶ Introduction
Special K includes options that fix thread scheduling on the most important threads for Final Fantasy XV.
¶ Installation
To make use of Special K’s full feature set for Final Fantasy XV, install a local version of Special K by following the instructions in the Set up a local install page.
- Final Fantasy XV is a 64bit Directx11 game, so use the
SpecialK64.dlland rename it todxgi.dll. - Don’t convert your existing install, delete the
SpecialK.central(in the game’s folder) if you did.
Click here to reveal a summary of the how-to local install Special K for Final Fantasy XV
0. Install the prerequisites:- Visual C++ 2015-2022 Redistributable 64bit.
- Download the stable Specialk.7z or grab the latest version from
#nightly-buildsin the Special K Discord Server. - Extract the
SpecialK64.dllto your game directory:\steamapps\common\FINAL FANTASY XV. - Rename
SpecialK64.dlltodxgi.dll.
¶ Configuration
¶ Recommended Settings
Set the following in the
dxgi.ini(Special K creates the dxgi.ini file automatically if there isn’t one when launching the game)
¶ Prevents crashing on launch when playing in SDR:
(FF15 will still use flip model, but it’d use flip_sequential instead of flip_discard)
at least SK v 24.10.5 actually sets
UseFlipDiscard=falseby default for FF15, so you may not need to manually set this in the SK config for the game.
[Render.DXGI]
UseFlipDiscard=false
¶ Might prevent some memory related crashes with some PCs:
[Textures.D3D11]
Cache=false
- Set
Cache=trueif you’re wanting to make use of Special K’s shader/texture modding support.
¶ Thread Priority
- Open the Special K menu with Ctrl + ⇧ Shift + ← Backspace and locate the Final Fantasy XV Windows Edition section.
- Set all threads to
Above Normal
¶ Input Management
Fix potential hitching by disabling input devices not in use under Input Management -> Enable / Disable Devices
¶ Game Settings
¶ Nvidia Effects
Disable the 4 Nvidia in-game settings to avoid potential stutters:
| NVIDIA HairWorks | off |
| NVIDIA-VXAO | off |
| NVIDIA TurfEffects | off |
| NVIDIA ShadowLibs | off |
¶ ReShade
If you want to get Final Fantasy XV working with both ReShade and Special K, check the ReShade entry for this game.
¶ Steam Discussion
You can view the original Steam thread here: [Special K] FFXV Performance Fixes
¶ Known Issues
¶ Razer Synapse
The game might crash if you have Razer Synapse installed on your system.
Delete \steamapps\common\FINAL FANTASY XV\CTLEDMgr.dll as a workaround.