In this article, we’ll explore the maximum amount of RAM available at the software level in various versions of Windows (10, 8.1, 7, Vista, and XP), as well as delve into the maximum RAM capacity in server systems – Windows Server.
On average, in Windows 10, the maximum amount of RAM is 2 TB, while in x32-bit systems, the standard is 4 GB.
| Windows 10 Editions | x64 | x32 (x86) |
|---|---|---|
| Windows 10 Pro | 2 TB | 4 GB |
| Windows 10 Home | 128 GB | 4 GB |
| Windows 10 Enterprise LTSC/LTSB | 2 TB | 4 GB |
| Windows 10 Education | 2 TB | 4 GB |
| Windows 10 Pro for WorkStations | 6 TB | - |
In Windows 8.1, the maximum RAM capacity is standardized for all versions at 512 GB.
| Windows 8.1 Editions | x64 | x32 (x86) |
|---|---|---|
| Windows 8.1 Pro | 512 GB | 4 GB |
| Windows 8.1 Enterprise | 512 GB | 4 GB |
| Windows 8.1 | 512 GB | 4 GB |
In Professional and more advanced editions of Windows 7, the maximum RAM is 192 GB. Windows 7 Starter is only available in the x32 edition.
| Windows 7 Editions | x64 | x32 (x86) |
|---|---|---|
| Windows 7 Ultimate | 192 GB | 4 GB |
| Windows 7 Enterprise | 192 GB | 4 GB |
| Windows 7 Professional | 192 GB | 4 GB |
| Windows 7 Home Premium | 16 GB | 4 GB |
| Windows 7 Home Premium | 8 GB | 4 GB |
| Windows 7 Starter | - | 2 GB |
In Professional and more advanced editions of Windows Vista, the maximum RAM is 128 GB. Windows Vista Starter is only available in the x32 edition.
| Windows Vista Editions | x64 | x32 (x86) |
|---|---|---|
| Windows Vista Ultimate | 128 GB | 4 GB |
| Windows Vista Enterprise | 128 GB | 4 GB |
| Windows Vista Business | 128 GB | 4 GB |
| Windows Vista Home Premium | 16 GB | 4 GB |
| Windows Vista Home Basic | 8 GB | 4 GB |
| Windows Vista Starter | - | 1 GB |
The maximum RAM capacity in Windows XP is available in the x64-bit version at 128 GB.
| Windows XP Editions | x64 | x32 (x86) |
|---|---|---|
| Windows XP | 128 GB | 4 GB |
| Windows XP Starter Edition | 512 Mb |
The maximum amount of RAM in Windows Server varies depending on the edition.
| Windows Server Editions | x64 |
|---|---|
| Windows Server 2019 Standard / Datacenter | 24 TB |
| Windows Server 2016 Standard / Datacenter | 24 TB |
| Windows Server 2012 и 2012r2 Standard / Datacenter | 4 TB |
| Windows Server 2008 Standard / Enterprise / Datacenter | 32 GB / 1 TB / 1 TB |
| Windows Server 2008r2 Standard / Enterprise / Datacenter | 32 GB / 2 TB / 2 TB |
