<Tr> <Th> Others </Th> <Td> N / A </Td> <Td> TV tuner card (Premium, Ultimate) Touchscreen (Premium, Business, Ultimate) USB flash drive (Ultimate) Trusted Platform Module (Ultimate) </Td> </Tr> <P> The maximum amount of RAM that Windows Vista can support varies, depending on both its edition and its processor architecture, as shown in the table . </P> <Table> <Tr> <Th> Edition </Th> <Th_colspan="2"> Processor architecture </Th> </Tr> <Tr> <Th> IA - 32 </Th> <Th> x64 </Th> </Tr> <Tr> <Td> Ultimate </Td> <Td> 4 GB </Td> <Td> 128 GB </Td> </Tr> <Tr> <Td> Enterprise </Td> </Tr> <Tr> <Td> Business </Td> </Tr> <Tr> <Td> Home Premium </Td> <Td> 16 GB </Td> </Tr> <Tr> <Td> Home Basic </Td> <Td> 8 GB </Td> </Tr> <Tr> <Td> Starter </Td> <Td> 1 GB </Td> <Td> N / A </Td> </Tr> </Table> <Tr> <Th> Edition </Th> <Th_colspan="2"> Processor architecture </Th> </Tr>

What is the maximum amount of ram supported in the 64-bit home premium edition of windows vista