Virtual memory, also known as a Page file, adds to the physical RAM by using disk space. However, moving the page file to a secondary SSD can help free up space if you run out of space on the primary.
I recently upgraded my proc, HD, and RAM in my system at home. I went from 768MB RAM to 1.5GB. I reinstalled the OS (Win2K SP4) and went from 1024 (start) / 2048 (stop) for Virtual Memory to Windows ...