32 bit programs 3 gb each?

[pallesenw]

If you are a heavy multitask user of Adobe applications then you tend to use more than 500 MB all together

 

[whs]

If you are a heavy multitask user of Adobe applications then you tend to use more than 500 MB all together

The RAM usage depends on the size of the RAM. The more RAM there is available, the more it will use - leading to better performance of course. In a small RAM (e.g. 1GB or 2GB), the usage will be smaller than in a 4GB or 6 GB system. But the small RAM will create more page faults slowing the system down.

 

[DeaconFrost]

If you are a heavy multitask user of Adobe applications then you tend to use more than 500 MB all together

Notice which ones were being mentioned. Those are home-line products with much less in typical memory usage. Even the CS4 products I have installed don't hit 1 GB easily.

 

[logicearth]

The link is about 32bit Windows.

Comparison of 32-bit and 64-bit memory architecture for 64-bit editions of Windows XP and Windows Server 2003

"Applications that are compiled with the /LARGEADDRESSAWARE option, as would be required to take advantage of the /3GB switch in 32-bit Windows, will automatically be able to address 4 GB of virtual memory without any boot time switches or changes to x64 Windows. Plus, of course, the operating system does not have to share that 4 GB of space. Therefore, it is not constrained at all."

You forget that the Virtual Memory is divided up between Kernel and User, by default it is 2 GB Kernel and 2 GB User. For Large Address Aware applications it is set as 1 GB Kernel and 3 GB User. The User portion is where the application lives.

* 64 bit applications are divided up as 8 TB Kernel and 8 TB User.

 

[pallesenw]

As hinted in the kb I linked to: In 64bit Windows there is no kernel present in a 32bit application's VAS, so the entire 4GB VAS can be used by the application.

"Plus, of course, the operating system does not have to share that 4 GB of space. Therefore, it is not constrained at all."

 

[severedsolo]

By default a 32 bit app can only utilise (working from memory here so could be wrong) about 2GB of RAM. On a 64 bit system this can be "hacked" to make it LAA (Large Address Aware) to use more. It's really only any use to you if you have 4GB+ of RAM though, and even then precious few programs actually use all 2GB anyway. Only thing I can think of that would benefit are things like video editing and games.