Older versions of SPSS generally require less RAM and CPU power than the modern "Subscription" or v29 versions. The Risks of Unauthorized Portable Software
Most universities provide "OnTheHub" or VPN-based licensing that allows students to use the software for a nominal fee or for free. ibm spss statistics v1900329 portable
Improved compiled code for quicker execution of complex transformations. Older versions of SPSS generally require less RAM
