The one with the faster processor. Actually, Navision does not take advantage of multiple processors, so unless you are running SQL on the same box, multiple processors do not make any real performance difference. The unspecified parameter is the number of sessions you have licensed, because generally, with more sessions, more memory is beneficial. Allen Beck President Beck Consulting Alameda, CA & Bellevue, WA allen@beckconsulting.com 800-456-8474