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참고 : https://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx#physical_memory_limits_windows_server_2008

 

Memory Limits for Windows and Windows Server Releases

This topic describes the memory limits for supported Windows and Windows Server releases.

·         Memory and Address Space Limits

·         Physical Memory Limits: Windows 10

·         Physical Memory Limits: Windows Server 2016

·         Physical Memory Limits: Windows 8

·         Physical Memory Limits: Windows Server 2012

·         Physical Memory Limits: Windows 7

·         Physical Memory Limits: Windows Server 2008 R2

·         Physical Memory Limits: Windows Server 2008

·         Physical Memory Limits: Windows Vista

·         Physical Memory Limits: Windows Home Server

·         Physical Memory Limits: Windows Server 2003 R2

·         Physical Memory Limits: Windows Server 2003 with Service Pack 2 (SP2)

·         Physical Memory Limits: Windows Server 2003 with Service Pack 1 (SP1)

·         Physical Memory Limits: Windows Server 2003

·         Physical Memory Limits: Windows XP

·         Physical Memory Limits: Windows Embedded

·         How graphics cards and other devices affect memory limits

·         Related topics

Limits on memory and address space vary by platform, operating system, and by whether the IMAGE_FILE_LARGE_ADDRESS_AWARE value of the LOADED_IMAGEstructure and 4-gigabyte tuning (4GT) are in use. IMAGE_FILE_LARGE_ADDRESS_AWARE is set or cleared by using the /LARGEADDRESSAWARE linker option.

4-gigabyte tuning (4GT), also known as application memory tuning, or the /3GB switch, is a technology (only applicable to 32 bit systems) that alters the amount of virtual address space available to user mode applications. 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 32-bit platforms also depend on the Physical Address Extension (PAE), which allows 32-bit Windows systems to use more than 4 GB of physical memory.

Memory and Address Space Limits

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.

Memory type

Limit on X86

Limit in 64-bit Windows

User-mode virtual address space for each 32-bit process

2 GB

Up to 3 GB with IMAGE_FILE_LARGE_ADDRESS_AWARE and 4GT

2 GB withIMAGE_FILE_LARGE_ADDRESS_AWAREcleared (default)

4 GB withIMAGE_FILE_LARGE_ADDRESS_AWAREset

User-mode virtual address space for each 64-bit process

Not applicable

With IMAGE_FILE_LARGE_ADDRESS_AWAREset (default):

x64:  8 TB

Intel Itanium-based systems:  7 TB

Windows 8.1 and Windows Server 2012 R2:  128 TB

2 GB withIMAGE_FILE_LARGE_ADDRESS_AWAREcleared

Kernel-mode virtual address space

2 GB

From 1 GB to a maximum of 2 GB with 4GT

8 TB

Windows 8.1 and Windows Server 2012 R2:  128 TB

Paged pool

384 GB or system commit limit, whichever is smaller.

Windows 8.1 and Windows Server 2012 R2:  15.5 TB or system commit limit, whichever is smaller.

Windows Server 2008 R2, Windows 7, Windows Server 2008 and Windows Vista:  Limited by available kernel-mode virtual address space. Starting with Windows Vista with Service Pack 1 (SP1), the paged pool can also be limited by thePagedPoolLimit registry key value.

Windows Home Server and Windows Server 2003:  530 MB

Windows XP:  490 MB

384 GB or system commit limit, whichever is smaller

Windows 8.1 and Windows Server 2012 R2:  15.5 TB or system commit limit, whichever is smaller.

Windows Server 2008 R2, Windows 7, Windows Server 2008 and Windows Vista:  128 GB or system commit limit, whichever is smaller

Windows Server 2003 and Windows XP:  Up to 128 GB depending on configuration and RAM.

Nonpaged pool

75% of RAM or 2 GB, whichever is smaller.

Windows 8.1 and Windows Server 2012 R2:  RAM or 16 TB, whichever is smaller (address space is limited to 2 x RAM).

Windows Vista:  Limited only by kernel mode virtual address space and physical memory. Starting with Windows Vista with SP1, the nonpaged pool can also be limited by the NonPagedPoolLimit registry key value.

Windows Home Server, Windows Server 2003 and Windows XP:  256 MB, or 128 MB with 4GT.

RAM or 128 GB, whichever is smaller (address space is limited to 2 x RAM)

Windows 8.1 and Windows Server 2012 R2:  RAM or 16 TB, whichever is smaller (address space is limited to 2 x RAM).

Windows Server 2008 R2, Windows 7 and Windows Server 2008:  75% of RAM up to a maximum of 128 GB

Windows Vista:  40% of RAM up to a maximum of 128 GB.

Windows Server 2003 and Windows XP:  Up to 128 GB depending on configuration and RAM.

System cache virtual address space (physical size limited only by physical memory)

Limited by available kernel-mode virtual address space or the SystemCacheLimitregistry key value.

Windows 8.1 and Windows Server 2012 R2:  16 TB.

Windows Vista:  Limited only by kernel mode virtual address space. Starting with Windows Vista with SP1, system cache virtual address space can also be limited by theSystemCacheLimit registry key value.

Windows Home Server, Windows Server 2003 and Windows XP:  860 MB withLargeSystemCache registry key set and without 4GT; up to 448 MB with 4GT.

Always 1 TB regardless of physical RAM

Windows 8.1 and Windows Server 2012 R2:  16 TB.

Windows Server 2003 and Windows XP:  Up to 1 TB depending on configuration and RAM.

 

Physical Memory Limits: Windows 10

The following table specifies the limits on physical memory for Windows 10.

Version

Limit on X86

Limit on X64

Windows 10 Enterprise

4 GB

2TB

Windows 10 Education

4 GB

2TB

Windows 10 Pro

4 GB

2TB

Windows 10 Home

4 GB

128GB

 

Physical Memory Limits: Windows Server 2016

The following table specifies the limits on physical memory for Windows Server 2016.

Version

Limit on X64

Windows Server 2016 Datacenter

24 TB

Windows Server 2016 Standard

24 TB

 

Physical Memory Limits: Windows 8

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

Version

Limit on X86

Limit on X64

Windows 8 Enterprise

4 GB

512 GB

Windows 8 Professional

4 GB

512 GB

Windows 8

4 GB

128 GB

 

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.

Version

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 7

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

Version

Limit on X86

Limit on X64

Windows 7 Ultimate

4 GB

192 GB

Windows 7 Enterprise

4 GB

192 GB

Windows 7 Professional

4 GB

192 GB

Windows 7 Home Premium

4 GB

16 GB

Windows 7 Home Basic

4 GB

8 GB

Windows 7 Starter

2 GB

N/A

 

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.

Version

Limit on X64

Limit 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 GB

Windows Server 2008 R2 Standard

32 GB

Windows HPC Server 2008 R2

128 GB

Windows Web Server 2008 R2

32 GB

 

Physical Memory Limits: Windows Server 2008

The following table specifies the limits on physical memory for Windows Server 2008. Limits greater than 4 GB for 32-bit Windows assume that PAE is enabled.

Version

Limit on X86

Limit on X64

Limit on IA64

Windows Server 2008 Datacenter

64 GB

1 TB

Windows Server 2008 Enterprise

64 GB

1 TB

Windows Server 2008 HPC Edition

128 GB

Windows Server 2008 Standard

4 GB

32 GB

Windows Server 2008 for Itanium-Based Systems

2 TB

Windows Small Business Server 2008

4 GB

32 GB

Windows Web Server 2008

4 GB

32 GB

 

Physical Memory Limits: Windows Vista

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

Version

Limit on X86

Limit on X64

Windows Vista Ultimate

4 GB

128 GB

Windows Vista Enterprise

4 GB

128 GB

Windows Vista Business

4 GB

128 GB

Windows Vista Home Premium

4 GB

16 GB

Windows Vista Home Basic

4 GB

8 GB

Windows Vista Starter

1 GB

 

Physical Memory Limits: Windows Home Server

Windows Home Server is available only in a 32-bit edition. The physical memory limit is 4 GB.

Physical Memory Limits: Windows Server 2003 R2

The following table specifies the limits on physical memory for Windows Server 2003 R2. Limits over 4 GB for 32-bit Windows assume that PAE is enabled.

Version

Limit on X86

Limit on X64

Windows Server 2003 R2 Datacenter Edition

64 GB

(16 GB with 4GT)

1 TB

Windows Server 2003 R2 Enterprise Edition

64 GB

(16 GB with 4GT)

1 TB

Windows Server 2003 R2 Standard Edition

4 GB

32 GB

 

Physical Memory Limits: Windows Server 2003 with Service Pack 2 (SP2)

The following table specifies the limits on physical memory for Windows Server 2003 with Service Pack 2 (SP2). Limits over 4 GB for 32-bit Windows assume that PAEis enabled.

Version

Limit on X86

Limit on X64

Limit on IA64

Windows Server 2003 with Service Pack 2 (SP2), Datacenter Edition

64 GB

(16 GB with 4GT)

1 TB

2 TB

Windows Server 2003 with Service Pack 2 (SP2), Enterprise Edition

64 GB

(16 GB with 4GT)

1 TB

2 TB

Windows Server 2003 with Service Pack 2 (SP2), Standard Edition

4 GB

32 GB

 

Physical Memory Limits: Windows Server 2003 with Service Pack 1 (SP1)

The following table specifies the limits on physical memory for Windows Server 2003 with Service Pack 1 (SP1). Limits over 4 GB for 32-bit Windows assume that PAEis enabled.

Version

Limit on X86

Limit on X64

Limit on IA64

Windows Server 2003 with Service Pack 1 (SP1), Datacenter Edition

64 GB

(16 GB with 4GT)

X64 1 TB

1 TB

Windows Server 2003 with Service Pack 1 (SP1), Enterprise Edition

64 GB

(16 GB with 4GT)

X64 1 TB

1 TB

Windows Server 2003 with Service Pack 1 (SP1), Standard Edition

4 GB

32 GB

 

Physical Memory Limits: Windows Server 2003

The following table specifies the limits on physical memory for Windows Server 2003. Limits over 4 GB for 32-bit Windows assume that PAE is enabled.

Version

Limit on X86

Limit on IA64

Windows Server 2003, Datacenter Edition

64 GB

(16 GB with 4GT)

512 GB

Windows Server 2003, Enterprise Edition

64 GB

(16 GB with 4GT)

512 GB

Windows Server 2003, Standard Edition

4 GB

Windows Server 2003, Web Edition

2 GB

Windows Small Business Server 2003

4 GB

Windows Compute Cluster Server 2003

32 GB

Windows Storage Server 2003, Enterprise Edition

8 GB

Windows Storage Server 2003

4 GB

 

Physical Memory Limits: Windows XP

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

Version

Limit on X86

Limit on X64

Limit on IA64

Windows XP

4 GB

128 GB

128 GB (not supported)

Windows XP Starter Edition

512 MB

N/A

N/A

 

Physical Memory Limits: Windows Embedded

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

Version

Limit on X86

Limit on X64

Windows XP Embedded

4 GB

Windows Embedded Standard 2009

4 GB

Windows Embedded Standard 7

4 GB

192 GB

 

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