Posted 10 March 2013 - 01:36 AM
Skyrim's not inherently programmed to have a low memory limit, as such. The fundamental limit is 4gb, due to its 32bit executable. It seems clear now that textures in VRAM are largely mirrored in RAM - possibly by design, or likely due to the behavior of DX9.
There is emerging evidence that Skyrim will crash when RAM usage for the Skyrim process exceeds 3GB. However:
- there does not appear to be an exact limit in the 3 - 4 gb range, experiences vary.
- we don't know why this is happening, it may or may not be due to poor coding, or some other limitation we have not identified.
- we cannot be sure yet that it is definitely memory causing the crashes. There appears to be a correlation, but it could be some other factor that increases roughly in tandem with memory usage.
- many users can use high res textures without problems.
So, while this is something we need to investigate as we progress, it's a bit premature to start warning people off high quality textures.