笔记261 Windows各个操作系统版本在X86 X64位下的最大内存数 2013-5-3
1 --Windows各个操作系统版本在X86 X64位下的最大内存数 2013-5-3
2 http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx
3 Physical Memory Limits: Windows 8
4 The following table specifies the limits on physical memory for Windows 8.
5
6 Version Limit on X86 Limit on X64
7 Windows 8 Enterprise 4 GB
8 512 GB
9
10 Windows 8 Professional 4 GB
11 512 GB
12
13 Windows 8 4 GB
14 128 GB
15
16
17
18
19 Physical Memory Limits: Windows Server 2012
20 The following table specifies the limits on physical memory for Windows Server 2012. Windows Server 2012 is available only in X64 editions.
21
22 Version Limit on X64
23 Windows Server 2012 Datacenter 4 TB
24
25 Windows Server 2012 Standard 4 TB
26
27 Windows Server 2012 Essentials 64 GB
28
29 Windows Server 2012 Foundation 32 GB
30
31 Windows Storage Server 2012 Workgroup 32 GB
32
33 Windows Storage Server 2012 Standard 4 TB
34
35 Hyper-V Server 2012 4 TB
36
37
38
39
40 Physical Memory Limits: Windows 7
41 The following table specifies the limits on physical memory for Windows 7.
42
43 Version Limit on X86 Limit on X64
44 Windows 7 Ultimate 4 GB
45 192 GB
46
47 Windows 7 Enterprise 4 GB
48 192 GB
49
50 Windows 7 Professional 4 GB
51 192 GB
52
53 Windows 7 Home Premium 4 GB
54 16 GB
55
56 Windows 7 Home Basic 4 GB
57 8 GB
58
59 Windows 7 Starter 2 GB
60 N/A
61
62
63
64
65 Physical Memory Limits: Windows Server 2008 R2
66 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.
67
68 Version Limit on X64 Limit on IA64
69 Windows Server 2008 R2 Datacenter 2 TB
70
71 Windows Server 2008 R2 Enterprise 2 TB
72
73 Windows Server 2008 R2 for Itanium-Based Systems 2 TB
74
75 Windows Server 2008 R2 Foundation 8 GB
76
77 Windows Server 2008 R2 Standard 32 GB
78
79 Windows HPC Server 2008 R2 128 GB
80
81 Windows Web Server 2008 R2 32 GB
82
83
84
85
86 Physical Memory Limits: Windows Server 2008
87 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.
88
89 Version Limit on X86 Limit on X64 Limit on IA64
90 Windows Server 2008 Datacenter 64 GB
91 1 TB
92
93 Windows Server 2008 Enterprise 64 GB
94 1 TB
95
96 Windows Server 2008 HPC Edition 128 GB
97
98 Windows Server 2008 Standard 4 GB
99 32 GB
100
101 Windows Server 2008 for Itanium-Based Systems 2 TB
102
103 Windows Small Business Server 2008 4 GB
104 32 GB
105
106 Windows Web Server 2008 4 GB
107 32 GB
108
109
110
111
112 Physical Memory Limits: Windows Vista
113 The following table specifies the limits on physical memory for Windows Vista.
114
115 Version Limit on X86 Limit on X64
116 Windows Vista Ultimate 4 GB
117 128 GB
118
119 Windows Vista Enterprise 4 GB
120 128 GB
121
122 Windows Vista Business 4 GB
123 128 GB
124
125 Windows Vista Home Premium 4 GB
126 16 GB
127
128 Windows Vista Home Basic 4 GB
129 8 GB
130
131 Windows Vista Starter 1 GB
132
133
134
135
136 Physical Memory Limits: Windows Home Server
137 Windows Home Server is available only in a 32-bit edition. The physical memory limit is 4 GB.
138
139 Physical Memory Limits: Windows Server 2003 R2
140 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.
141
142 Version Limit on X86 Limit on X64
143 Windows Server 2003 R2 Datacenter Edition
144 64 GB
145
146 (16 GB with 4GT)
147 1 TB
148
149 Windows Server 2003 R2 Enterprise Edition
150 64 GB
151
152 (16 GB with 4GT)
153 1 TB
154
155 Windows Server 2003 R2 Standard Edition
156 4 GB
157 32 GB
158
159
160
161
162 Physical Memory Limits: Windows Server 2003 with Service Pack 2 (SP2)
163 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 PAE is enabled.
164
165 Version Limit on X86 Limit on X64 Limit on IA64
166 Windows Server 2003 with Service Pack 2 (SP2), Datacenter Edition
167 64 GB
168
169 (16 GB with 4GT)
170 1 TB
171 2 TB
172
173 Windows Server 2003 with Service Pack 2 (SP2), Enterprise Edition
174 64 GB
175
176 (16 GB with 4GT)
177 1 TB
178 2 TB
179
180 Windows Server 2003 with Service Pack 2 (SP2), Standard Edition
181 4 GB
182 32 GB
183
184
185
186
187 Physical Memory Limits: Windows Server 2003 with Service Pack 1 (SP1)
188 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 PAE is enabled.
189
190 Version Limit on X86 Limit on X64 Limit on IA64
191 Windows Server 2003 with Service Pack 1 (SP1), Datacenter Edition
192 64 GB
193
194 (16 GB with 4GT)
195 X64 1 TB
196 1 TB
197
198 Windows Server 2003 with Service Pack 1 (SP1), Enterprise Edition
199 64 GB
200
201 (16 GB with 4GT)
202 X64 1 TB
203 1 TB
204
205 Windows Server 2003 with Service Pack 1 (SP1), Standard Edition
206 4 GB
207 32 GB
208
209
210
211
212 Physical Memory Limits: Windows Server 2003
213 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.
214
215 Version Limit on X86 Limit on IA64
216 Windows Server 2003, Datacenter Edition
217 64 GB
218
219 (16 GB with 4GT)
220 512 GB
221
222 Windows Server 2003, Enterprise Edition
223 64 GB
224
225 (16 GB with 4GT)
226 512 GB
227
228 Windows Server 2003, Standard Edition
229 4 GB
230
231 Windows Server 2003, Web Edition
232 2 GB
233
234 Windows Small Business Server 2003
235 4 GB
236
237 Windows Compute Cluster Server 2003
238 32 GB
239
240 Windows Storage Server 2003, Enterprise Edition
241 8 GB
242
243 Windows Storage Server 2003
244 4 GB
245
246
247
248
249 Physical Memory Limits: Windows XP
250 The following table specifies the limits on physical memory for Windows XP.
251
252 Version Limit on X86 Limit on X64 Limit on IA64
253 Windows XP 4 GB
254 128 GB
255 128 GB (not supported)
256
257 Windows XP Starter Edition 512 MB
258 N/A
259 N/A
260
261
262
263
264 Physical Memory Limits: Windows Embedded
265 The following table specifies the limits on physical memory for Windows Embedded.
266
267 Version Limit on X86 Limit on X64
268 Windows XP Embedded
269 4 GB
270
271 Windows Embedded Standard 2009
272 4 GB
273
274 Windows Embedded Standard 7
275 4 GB
276 192 GB
277
278
279
280
281 How graphics cards and other devices affect memory limits
282 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’t support physical memory above the 4GB mark, so they can’t access these remapped regions. Any X64 Windows or X86 Server release can.
283
284 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 "lost" memory regions located above 4 GB and expose this memory as a RAM disk.
