Originally posted by turtile
I guess you don't know what virtual address space is?
VAS is the total amount of memory that can be used between the OS and applications.
A 32 bit operating system can ONLY address 4GB total.
In Windows at least 800MB must be reserved for the operating system leaving a total of 3.2GB of memory.
In 64 bit windows, you will eventually be able to address 1TB of memory. Therefore, if you have 4GB of memory, a program can use all 4GB and the system can address virtual memory.
first that would still be 4 gigs not 3.2, just cuz windows is using it doesnt mean its not being supported or used.
second is how are you saying 800, when windows xp can run on 128meg physical ram and 2mb min page. wheres the 800 come from then.
and in your theory if i have a gig of ram then apps can only use 200 meg, thats odd how a video game can then use 600 meg at the same time.
**EDIT** and also with your VAS bs, if it was the total memory and system can use between the os and apps then it would be 8192megs because you can also have a max of 4096 in page that is apps also use.