{"id":4244,"date":"2011-03-29T21:05:55","date_gmt":"2011-03-29T17:05:55","guid":{"rendered":"http:\/\/msbro.ru\/?p=4244"},"modified":"2011-03-29T21:16:56","modified_gmt":"2011-03-29T17:16:56","slug":"memory-limits-for-windows-releases","status":"publish","type":"post","link":"https:\/\/msbro.ru\/index.php\/archives\/4244","title":{"rendered":"Memory Limits for Windows Releases"},"content":{"rendered":"

\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u0434\u043b\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432 Windows (\u0432\u0437\u044f\u0442\u043e \u0441 MDSN).<\/p>\n

Limits on memory and address space vary by platform, operating system, and by whether the IMAGE_FILE_LARGE_ADDRESS_AWARE value of the LOADED_IMAGE<\/strong><\/a> structure and 4-gigabyte tuning<\/a> (4GT) are in use. IMAGE_FILE_LARGE_ADDRESS_AWARE is set or cleared by using the \/LARGEADDRESSAWARE<\/strong><\/a> linker option.<\/p>\n

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<\/strong><\/a>.<\/p>\n

Limits on physical memory for 32-bit platforms also depend on the Physical Address Extension<\/a> (PAE), which allows 32-bit Windows systems to use more than 4 GB of physical memory.<\/p>\n

Memory and Address Space Limits<\/h3>\n

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.<\/p>\n\n\n\n\n\n\n\n\n\n
Memory type<\/th>\nLimit in on X86<\/th>\nLimit in 64-bit Windows<\/th>\n<\/tr>\n
User-mode virtual address space for each 32-bit process<\/td>\n2 GB <\/p>\n

Up to 3 GB with IMAGE_FILE_LARGE_ADDRESS_AWARE and 4GT<\/td>\n

2 GB with IMAGE_FILE_LARGE_ADDRESS_AWARE cleared (default) <\/p>\n

4 GB with IMAGE_FILE_LARGE_ADDRESS_AWARE set<\/td>\n<\/tr>\n

User-mode virtual address space for each 64-bit process<\/td>\nNot applicable<\/td>\nWith IMAGE_FILE_LARGE_ADDRESS_AWARE set (default): <\/p>\n
\n
x64: <\/strong>8 TB<\/div>\n<\/blockquote>\n
\n
Intel IPF: <\/strong>7 TB<\/div>\n<\/blockquote>\n

2 GB with IMAGE_FILE_LARGE_ADDRESS_AWARE cleared<\/td>\n<\/tr>\n

Kernel-mode virtual address space<\/td>\n2 GB <\/p>\n

From 1 GB to a maximum of 2 GB with 4GT<\/td>\n

8 TB<\/td>\n<\/tr>\n
Paged pool<\/td>\nLimited by available kernel-mode virtual address space or the PagedPoolLimit<\/a> registry key value. <\/p>\n
\n
128 GB <\/p>\n
\n
Windows Server 2003 and Windows XP: <\/strong>Up to 128 GB depending on configuration and RAM.<\/div>\n<\/blockquote>\n
\n
Windows 2000: <\/strong>Not applicable<\/div>\n<\/blockquote>\n<\/td>\n<\/tr>\n
Nonpaged pool<\/td>\nLimited by available kernel-mode virtual address space, the NonPagedPoolLimit<\/a> registry key value, or physical memory. <\/p>\n
\n
75% of RAM up to a maximum of 128 GB <\/p>\n
\n
Windows Vista: <\/strong>40% of RAM up to a maximum of 128 GB.<\/div>\n<\/blockquote>\n
\n
Windows Server 2003 and Windows XP: <\/strong>Up to 128 GB depending on configuration and RAM.<\/div>\n<\/blockquote>\n
\n
Windows 2000: <\/strong>Not applicable<\/div>\n<\/blockquote>\n<\/td>\n<\/tr>\n
System cache virtual address space (physical size limited only by physical memory)<\/td>\nLimited by available kernel-mode virtual address space or the SystemCacheLimit<\/a> registry key value. <\/p>\n
\n
Always 1 TB regardless of physical RAM <\/p>\n
\n
Windows Server 2003 and Windows XP: <\/strong>Up to 1 TB depending on configuration and RAM.<\/div>\n<\/blockquote>\n
\n
Windows 2000: <\/strong>Not applicable<\/div>\n<\/blockquote>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows 7<\/h3>\n

The following table specifies the limits on physical memory for Windows 7.<\/p>\n\n\n\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\n<\/tr>\n
Windows 7 Ultimate<\/td>\n4 GB<\/td>\n192 GB<\/td>\n<\/tr>\n
Windows 7 Enterprise<\/td>\n4 GB<\/td>\n192 GB<\/td>\n<\/tr>\n
Windows 7 Professional<\/td>\n4 GB<\/td>\n192 GB<\/td>\n<\/tr>\n
Windows 7 Home Premium<\/td>\n4 GB<\/td>\n16 GB<\/td>\n<\/tr>\n
Windows 7 Home Basic<\/td>\n4 GB<\/td>\n8 GB<\/td>\n<\/tr>\n
Windows 7 Starter<\/td>\n2 GB<\/td>\n2 GB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Server 2008 R2<\/h3>\n

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.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Version<\/th>\nLimit on X64<\/th>\nLimit on IA64<\/th>\n<\/tr>\n
Windows Server 2008 R2 Datacenter<\/td>\n2 TB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2008 R2 Enterprise<\/td>\n2 TB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2008 R2 for Itanium-Based Systems<\/td>\n<\/td>\n2 TB<\/td>\n<\/tr>\n
Windows Server 2008 R2 Foundation<\/td>\n8 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2008 R2 Standard<\/td>\n32 GB<\/td>\n<\/td>\n<\/tr>\n
Windows HPC Server 2008 R2<\/td>\n128 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Web Server 2008 R2<\/td>\n32 GB<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Server 2008<\/h3>\n

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<\/a> is enabled.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\nLimit on IA64<\/th>\n<\/tr>\n
Windows Server 2008 Datacenter<\/td>\n64 GB<\/td>\n1 TB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2008 Enterprise<\/td>\n64 GB<\/td>\n1 TB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2008 HPC Edition<\/td>\n<\/td>\n128 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2008 Standard<\/td>\n4 GB<\/td>\n32 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2008 for Itanium-Based Systems<\/td>\n<\/td>\n<\/td>\n2 TB<\/td>\n<\/tr>\n
Windows Small Business Server 2008<\/td>\n4 GB<\/td>\n32 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Web Server 2008<\/td>\n4 GB<\/td>\n32 GB<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Vista<\/h3>\n

The following table specifies the limits on physical memory for Windows Vista.<\/p>\n\n\n\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\n<\/tr>\n
Windows Vista Ultimate<\/td>\n4 GB<\/td>\n128 GB<\/td>\n<\/tr>\n
Windows Vista Enterprise<\/td>\n4 GB<\/td>\n128 GB<\/td>\n<\/tr>\n
Windows Vista Business<\/td>\n4 GB<\/td>\n128 GB<\/td>\n<\/tr>\n
Windows Vista Home Premium<\/td>\n4 GB<\/td>\n16 GB<\/td>\n<\/tr>\n
Windows Vista Home Basic<\/td>\n4 GB<\/td>\n8 GB<\/td>\n<\/tr>\n
Windows Vista Starter<\/td>\n1 GB<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Home Server<\/h3>\n

Windows Home Server is available only in a 32-bit edition. The physical memory limit is 4 GB.<\/p>\n

Physical Memory Limits: Windows Server 2003 R2<\/h3>\n

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<\/a> is enabled.<\/p>\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\n<\/tr>\n
Windows Server 2003 R2 Datacenter Edition<\/td>\n64 GB <\/p>\n

(16 GB with 4GT)<\/td>\n

1 TB<\/td>\n<\/tr>\n
Windows Server 2003 R2 Enterprise Edition<\/td>\n64 GB <\/p>\n

(16 GB with 4GT)<\/td>\n

1 TB<\/td>\n<\/tr>\n
Windows Server 2003 R2 Standard Edition<\/td>\n4 GB<\/td>\n32 GB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Server 2003 with Service Pack 2 (SP2)<\/h3>\n

The following table specifies the limits on physical memory for Windows Server 2003 with SP2. Limits over 4 GB for 32-bit Windows assume that PAE<\/a> is enabled.<\/p>\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\nLimit on IA64<\/th>\n<\/tr>\n
Windows Server 2003 with Service Pack 2 (SP2), Datacenter Edition<\/td>\n64 GB <\/p>\n

(16 GB with 4GT)<\/td>\n

1 TB<\/td>\n2 TB<\/td>\n<\/tr>\n
Windows Server 2003 with Service Pack 2 (SP2), Enterprise Edition<\/td>\n64 GB<\/td>\n1 TB<\/td>\n2 TB<\/td>\n<\/tr>\n
Windows Server 2003 with Service Pack 2 (SP2), Standard Edition<\/td>\n4 GB<\/td>\n32 GB<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Server 2003 with Service Pack 1 (SP1)<\/h3>\n

The following table specifies the limits on physical memory for Windows Server 2003 with SP1. Limits over 4 GB for 32-bit Windows assume that PAE<\/a> is enabled.<\/p>\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\nLimit on IA64<\/th>\n<\/tr>\n
Windows Server 2003 with Service Pack 1 (SP1), Datacenter Edition<\/td>\n64 GB <\/p>\n

(16 GB with 4GT)<\/td>\n

X64 1 TB<\/td>\n1 TB<\/td>\n<\/tr>\n
Windows Server 2003 with Service Pack 1 (SP1), Enterprise Edition<\/td>\n64 GB <\/p>\n

(16 GB with 4GT)<\/td>\n

X64 1 TB<\/td>\n1 TB<\/td>\n<\/tr>\n
Windows Server 2003 with Service Pack 1 (SP1), Standard Edition<\/td>\n4 GB<\/td>\n32 GB<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Server 2003<\/h3>\n

The following table specifies the limits on physical memory for Windows Server 2003. Limits over 4 GB for 32-bit Windows assume that PAE<\/a> is enabled.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on IA64<\/th>\n<\/tr>\n
Windows Server 2003, Datacenter Edition<\/td>\n64 GB <\/p>\n

(16 GB with 4GT)<\/td>\n

512 GB<\/td>\n<\/tr>\n
Windows Server 2003, Enterprise Edition<\/td>\n64 GB <\/p>\n

(16 GB with 4GT)<\/td>\n

512 GB<\/td>\n<\/tr>\n
Windows Server 2003, Standard Edition<\/td>\n4 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Server 2003, Web Edition<\/td>\n2 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Small Business Server 2003<\/td>\n4 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Compute Cluster Server 2003<\/td>\n<\/td>\n32 GB<\/td>\n<\/tr>\n
Windows Storage Server 2003, Enterprise Edition<\/td>\n8 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Storage Server 2003<\/td>\n4 GB<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows XP<\/h3>\n

The following table specifies the limits on physical memory for Windows XP.<\/p>\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\nLimit on IA64<\/th>\n<\/tr>\n
Windows XP<\/td>\n4 GB<\/td>\n128 GB<\/td>\n128 GB (not supported)<\/td>\n<\/tr>\n
Windows XP Starter Edition<\/td>\n512 MB<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows 2000<\/h3>\n

The following table specifies the limits on physical memory for Windows 2000.<\/p>\n\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\n<\/tr>\n
Windows 2000 Professional<\/td>\n4 GB<\/td>\n<\/tr>\n
Windows 2000 Server<\/td>\n4 GB<\/td>\n<\/tr>\n
Windows 2000 Advanced Server<\/td>\n8 GB<\/td>\n<\/tr>\n
Windows 2000 Datacenter Server<\/td>\n32 GB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Physical Memory Limits: Windows Embedded<\/h3>\n

The following table specifies the limits on physical memory for Windows Embedded.<\/p>\n\n\n\n\n\n\n
Version<\/th>\nLimit on X86<\/th>\nLimit on X64<\/th>\n<\/tr>\n
Windows XP Embedded<\/td>\n4 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Embedded Standard 2009<\/td>\n4 GB<\/td>\n<\/td>\n<\/tr>\n
Windows Embedded Standard 7<\/td>\n4 GB<\/td>\n192 GB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

How graphics cards and other devices affect memory limits<\/h3>\n

Devices have to map their memory below 4 GB for compatibility with non-PAE-aware Windows releases. Therefore, if the system has 4GB of RAM, some of it is either disabled or is remapped above 4GB by the BIOS. If the memory is remapped, X64 Windows can use this memory. X86 client versions of Windows don\u2019t support physical memory above the 4GB mark, so they can\u2019t access these remapped regions. Any X64 Windows or X86 Server release can.<\/p>\n

X86 client versions with PAE enabled do have a usable 37-bit (128 GB) physical address space. The limit that these versions impose is the highest permitted physical RAM address, not the size of the IO space. That means PAE-aware drivers can actually use physical space above 4 GB if they want. For example, drivers could map the \u201clost\u201d memory regions located above 4 GB and expose this memory as a RAM disk.<\/p>\n

****<\/p>\n

\u0432\u0437\u044f\u0442\u043e \u0442\u0443\u0442<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u0434\u043b\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432 Windows (\u0432\u0437\u044f\u0442\u043e \u0441 MDSN). Limits on memory and address space vary by platform, operating system, and by whether the IMAGE_FILE_LARGE_ADDRESS_AWARE value of the LOADED_IMAGE structure 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 …<\/p>\n

Continue reading ‘Memory Limits for Windows Releases’ »<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,3],"tags":[1256,1257,726,1251,1252,1253,1260,1731,1259,637,633,629,635,631,1254,1255,1258,729],"class_list":["post-4244","post","type-post","status-publish","format-standard","hentry","category-wiki","category-windows","tag-address-space","tag-limits","tag-memory","tag-memory-limits","tag-pae","tag-physical-address-extension","tag-physical-memory","tag-windows","tag-windows-2000","tag-windows-server","tag-windows-server-2003","tag-windows-server-2008","tag-windows-server-2008-r2","tag-windows-xp","tag-x64","tag-x86","tag-ogranicheniya","tag-pamyat"],"_links":{"self":[{"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/posts\/4244"}],"collection":[{"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/comments?post=4244"}],"version-history":[{"count":0,"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/posts\/4244\/revisions"}],"wp:attachment":[{"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/media?parent=4244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/categories?post=4244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/msbro.ru\/index.php\/wp-json\/wp\/v2\/tags?post=4244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}