RAM Requirements for Style Transfer?

Does anyone know what the RAM requirements for style transfer are? I have used other algorithms such as the ones here: https://reiinakano.com/arbitrary-image-stylization-tfjs/ which run in almost real-time. However, there have been advances in arbitrary style transfer and the results of the linked method has artifacts.

I picked up ArtEngine specifically to style transfer some 2k textures, remove any compression, and upres to 4k. I was hoping to automate the process of creating "Borderlands" style textures. I assume ArtEngine's style transfer is arbitrary.

Unfortunately when computing just the style transfer from a 2K source to a 2K destination albedo texture the program takes a minute then displays an out-of vRAM popup. The vRam usage bar at the top right only says 18% usage when executing the node though.

System Specs:
Intel 11gen Core i7-11700F @ 2.50GHz
Nvidia RTX 3070
Memory: 32GB RAM

Do I need a more powerful rig? Can I manually assign more vRAM to the application? I can't tell if I'm running out because I don't have enough or because there is a soft cap preventing the app from using the full power of my graphics card.

More information about the recommended specs or even a tutorial on this feature would be appreciated.