https://www.techpowerup.com/300069/arctic-collaborates-with-inno3d-for-ichill-rtx-4090-black-liquid-cooled-graphics-card
 
ARCTIC, leading manufacturer of silent PC coolers and components, today informs about the new INNO3D GEFORCE RTX 4090 ICHILL BLACK graphics card. We love innovative projects and enthusiastically took on the challenge of taming NVIDIA's power-hungry new release. Working closely with INNO3D, we created an efficient liquid cooling system for graphics cards. With technical know-how, in cooling combined with a clean, uncluttered design and straight lines and edges, the INNO3D GEFORCE RTX 4090 ICHILL BLACK graphics card is rightfully called "Brutal by Nature".

We would like to thank INNO3D for their very good collaboration. The new GeForce RTX 4090 iCHILL BLACK features a hybrid cooling solution that combines quiet airflow with powerful water cooling. We have been creating cooling solutions for computer hardware for over 20 years. Successful products such as the P-Series fans as well as the ARCTIC Liquid Freezer II have found enormous appeal in the hardware industry. We set out to combine the successful aspects of these products to create a high-performance GPU cooler.
 
The new iCHILL Black offers excellent cooling performance with updated AIO and radiator design. The fan blades of the P-Fans deliver an especially focused airflow and thus high static-pressure, so INNO3D fans can enjoy extreme gaming with guaranteed efficient cooling.
 
That is a great looking watercooled video card in my personal opinion. 
 

B0baganoosh
The arctic blocks seem like they're probably pretty good, but I think they're currently only for the reference board design, and the only inno3d PCB with a picture out right now is....certainly not impressive from a VRM perspective.
 
The X3 OC (which I don't know how different that is from the ichill version...if the PCB is different or just the cooler):

 
It has about half the VRM phases as the Suprim X, worse caps, worse fets...It probably runs hotter, and considerably less stable, which even if the core is dropped with the good block performance, might prevent any sort of appreciable overclock.

Wow that VRM layout along with parts used is scary and just asking for problems.