RAMDisk is better than fast disk and same as RAID 0
Large builds executing database tests are quicker with RAM disk.
Compares speed of commercial and free RAM disks
Detailed explanation of Windows Vista virtual memory
Advice on Vista file cache and page file
Usual arguments aginst RAM disk but also specific evidence in favour.
Turn off AutoRecover for faster Visual Studio
Suggestions including turning on compression
Evidence against a RAM disk for Visual Studio
More on replacing SSD by RAM disk
Evidence of 20% reduction in build time
Explains why Windows File Cache is good for reads but not for writes. Seems there is an attribute that could be used to improve short-lived files but hardly ever is.
Some claim snappier performance with pagefile disabled.
Suggests that Windows pre-emptively moves items from physical to virtual memory whenever it hasn't been active for a while, thus causing delays when you switch to it.