
In fact borris (the creator of the enb libraries) released a memory patch to address the amount of memory Skyrim used since it is a 32bit application, and subsequently limited to ~3.2GB of RAM usage (without a modded. If you've ever played with an enb, you'll know what im talking about.

This heap is generally under 512MB, but the game itself can be seen to run anywhere from 2GB+. These heaps contain the data the game engine needs to calculate the game environment. Every time it fills up it's heap, it requests another 256MB (in theory). Skyrim (for example) allocated its heaps in 256MB chunks, in two memory blocks. It's this heap that the game is tracking.

I can concur that this ram usage is in fact GPU ram usage and nothing elseĪll game engines allocate their own memory heap.
