Clunky design aside, the RGB lighting on the RTX 3080 Ti iChill X4 is one of the brightest I’ve seen for GPUs despite only sporting a strip and text for the lighting. It’s RGB lighting uses a wave pattern by default.
TuneIT OC Utility is Inno3D’s overclocking and RGB lighting software. Frankly, it’s UI makes me not want to use it due to its weird green theme. However, every setting you need to tune your GPU is presented in one window, unlike other applications where it’s mostly segmented by window tabs. The RGB setting is a tricky one to find as you need to click the left arrow on the lighting area near the left side of the fan curve to access the RGB lighting window. Once accessed, you can access different presets, brightness, and speed levels. The software can save up to four RGB profiles.
Note: The v3.05 version of the TuneIT utility doesn’t seem to recognize the GPU as an RTX 3080 Ti