Windows xp professional 64 bit memory limit

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Enabling this technology reduces the overall size of the system virtual address space and therefore system resource maximums.

For more information, see What is 4GT. Limits on physical memory for bit platforms also depend on the Physical Address Extension PAE , which allows bit Windows systems to use more than 4 GB of physical memory. The following table specifies the limits on memory and address space for supported releases of Windows. Unless otherwise noted, the limits in this table apply to all supported releases.

The following table specifies the limits on physical memory for Windows Server Windows Server is available only in X64 editions. The following table specifies the limits on physical memory for Windows Server R2. Windows Server R2 is available only in bit editions. If the memory is remapped, X64 Windows can use this memory. Any X64 Windows or X86 Server release can. The limit that these versions impose is the highest permitted physical RAM address, not the size of the IO space. This may lead to the need for library developers to provide both and bit binary versions of their libraries.

Windows XP x64 Edition includes both and bit versions of Internet Explorer , in order to allow for the possibility that some third-party browser plugins or ActiveX controls may not yet be available in bit versions.

Older bit drivers and services are not supported by bit Windows, but video and audio codecs such as XviD or OggDS, which are in fact bit DLLs, are supported as long as the media player that uses them is bit as well.

This includes popular video players such as Media Player Classic. Microsoft Wiki Explore. Windows families. Windows Windows 11 Windows 10 Windows 8. Windows CE Windows Embedded. Microsoft Surface. European Union Microsoft antitrust case United States v. Microsoft Shared source. Explore Wikis Community Central. Register Don't have an account? Windows XP Professional x64 Edition.