RAM Memory Limits for Microsoft Windows 8, 7, XP, 2012 and 2008

Updated: June 8, 2019 / Home » Freeware and Software Reviews » SSD, HDD, RAM & Flash Memory

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Physical Memory Limits: Windows 8

The following table specifies the limits on physical memory for Windows 8.

 Limit on X86Limit on X64

Windows 8 Enterprise

4 GB512 GB

Windows 8 Professional

4 GB512 GB

Windows 8

4 GB128 GB

Physical Memory Limits: Windows 7

The following table specifies the limits on physical memory for Windows 7.

 Limit on X86Limit on X64

Windows 7 Ultimate

4 GB192 GB

Windows 7 Enterprise

4 GB192 GB

Windows 7 Professional

4 GB192 GB

Windows 7 Home Premium

4 GB16 GB

Windows 7 Home Basic

4 GB12 GB

Windows 7 Starter

2 GBn/a

Physical Memory Limits: Windows XP

 Limit on X86Limit on X64Limit on IA64

Windows XP

4 GB128 GB128 GB (not supported)

Windows XP Starter Edition

512 MBn/an/a
Related Article :   8 Freeware To Check & Repair SSD Hard Disk With Bad Sectors

Physical Memory Limits: Windows Server 2012

The following table specifies the limits on physical memory for Windows Server 2012. Windows Server 2012 is available only in X64 editions.

 Limit on X64

Windows Server 2012 Datacenter

4 TB

Windows Server 2012 Standard

4 TB

Windows Server 2012 Essentials

64 GB

Windows Server 2012 Foundation

32 GB

Windows Storage Server 2012 Workgroup

32 GB

Windows Storage Server 2012 Standard

4 TB

Hyper-V Server 2012

4 TB

Physical Memory Limits: Windows Server 2008 R2

The following table specifies the limits on physical memory for Windows Server 2008 R2. Windows Server 2008 R2 is available only in 64-bit editions.

 Limit on X64Limit on IA64

Windows Server 2008 R2 Datacenter

2 TB

Windows Server 2008 R2 Enterprise

2 TB

Windows Server 2008 R2 for Itanium-Based Systems

2 TB

Windows Server 2008 R2 Foundation

8 TB

Windows Server 2008 R2 Standard

32 GB

Windows HPC Server 2008 R2

128 GB

Windows Web Server 2008 R2

32 GB
Related Article :   FREE Windows Hard Disk And SSD Partition Alignment Software

If you’ve reached the limit allowed, another way of increasing the memory is to use ReadyBoost. You’ll need a flash drive or SD memory card. As shown in this article, the SD memory card UHS-1 is the fastest.


12 Comments

  1. Gravatar
    microsoft [ Reply ]

    Physical Memory Limits for Microsoft Windows 8 is?

  2. Gravatar

    Vista x64 can use more memory than the 32-bit version

    • Gravatar

      Turns out now, that I need to run a 32Bit OS (XP or 7) due to some software

  3. Gravatar
    professor [ Reply ]

    Windows 7 and Windows Server 2008 R2 memory managers match their 32-bit

  4. Gravatar
    Tutorial [ Reply ]

    how to Make Windows 7 and Vista 32-bit (x86) Support More Than 4GB of RAM?

  5. Gravatar

    What’s the memory limited for windows server 2003 R2???

  6. Gravatar
    Russell Holly [ Reply ]

    64-bit or 32-bit? Memory and performance? overkill?

  7. Gravatar
    Harrison Weber [ Reply ]

    RAM, Virtual Memory, PageFile and all that stuff…. who cares…. yawn!

  8. Gravatar

    I have 32 bit windows 7 operating System with 2GB RAM

    • Gravatar

      Up to 128 GB depending on configuration and RAM

  9. Gravatar
    Muhammad [ Reply ]

    what is the Windows Memory Limits for microsoft windows 8?

  10. Gravatar
    Bill Landreth [ Reply ]

    Long past time to upgrade to 64-bit. It was actually better when I FIRST tried it around 2003, but comparability was off and it was a nightmare to “go back” to 32 bit. Now it is black and white, 64-bit supports the new hardware and 32-bit does not. All 32 bit software can be quickly and painlessly expanded to fit into the 64-bit spaces. Most operations are up to 200% faster except for memory moves being 25% slower but they are obviously finally redundant since we finally using hardware pointers and other methods.

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