Yes, modded Skyrim can exceed 2GB of VRAM depending on the complexity of the mods and settings.
Yes, modded Skyrim can exceed 2GB of VRAM depending on the complexity of the mods and settings.
You're playing about 87 mods in Skyrim with a mix of 4K and 2K graphics. Adding an ENB for loading saves causes your VRAM usage to spike to nearly 2.3GB, which is double the 3GB your GTX 780 can handle. Usually Skyrim crashes under heavy settings, but pushing memory overclocking makes it unstable.
Based on my observations with several mods, my reading was approximately 2.3 to 2.6, which indicates a positive outcome.