<page_title> Windows Vista editions </page_title> <section_title> Comparison chart </section_title> <table> <cell> 128 GB <col_header> Business1,2,3 </col_header> <row_header> Maximum RAM on x64 </row_header> </cell> <cell> Maximum physical CPUs <col_header> Features </col_header> <col_header> Licensing scheme </col_header> <col_header> Maximum RAM on IA-32 </col_header> <col_header> Maximum RAM on x64 </col_header> </cell> <cell> 2 <col_header> Business1,2,3 </col_header> <row_header> Maximum physical CPUs </row_header> </cell> <cell> 64-bit support <col_header> Features </col_header> <col_header> Licensing scheme </col_header> <col_header> Maximum RAM on IA-32 </col_header> <col_header> Maximum RAM on x64 </col_header> <col_header> Maximum physical CPUs </col_header> <col_header> Games Explorer </col_header> <col_header> Instant Search </col_header> <col_header> Windows ReadyDrive </col_header> <col_header> Windows Speech Recognition </col_header> <col_header> Parental controls </col_header> <col_header> Number of running software </col_header> <col_header> Windows Movie Maker </col_header> </cell> </table>
The Business edition of Windows Vista supports up to two physical CPUs, and the 64-bit version supports 128 GB of RAM.