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Windows 10 Official Memory Limits is 2 TBs

If you’re planning on getting a new Windows 10 Pro PC, make sure to get the 64-bit version because it can support up to a whopping 2 TB of RAM.

Windows 10 UpdateWhen Microsoft launched Windows 10 over the summer, there were still some unknowns about it. One piece of information that was missing was the memory limits for the new version of the OS. Previously, Windows 8 had increased its memory limits to 512 GBs from Windows 7’s 192 GB for the 64-bit premium business editions, Pro and Enterprise. Windows 10 makes an even bigger jump, with Pro and Enterprise now hitting the 2 TB ceiling. Because of the memory address space limitations for 32-bit Windows 10; that remains at 4 GBs. Windows 10 Home 64-bit remains unchanged at 128 GBs of RAM.

Windows 10 RAM Limits

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

VersionLimit on X86Limit on X64
Windows 10 Enterprise4 GB2TB
Windows 10 Education4 GB2TB
Windows 10 Pro4 GB2TB
Windows 10 Home4 GB128GB

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

VersionLimit on X86Limit on X64
Windows 8 Enterprise4 GB512 GB
Windows 8 Professional4 GB512 GB
Windows 84 GB128 GB

The memory limits between client and server are starting to compete; leaving an awkward gap with some editions in the Windows Server 2012 family like Foundation and Essentials at 64 GB. High-end editions such as Standard and Datacenter have a memory limit of 4 TB. It is not known if the next revision of Windows Server currently in development will up its limit. With companies such as Samsung now releasing 128 GB DDR4 memory chips, it’s not hard to see client systems, most likely powerhouse gaming machines and workstations with 1 or 2 TB configurations soon. If you want to know which architecture of Windows you are running, check out our article for instructions.


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