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How much RAM you are actually using?

Every now and then when we are trying to upgrade our system we come across the question do i have enough RAM or should i increase the ram? Today I will try and help you find the answer o this question.We all know that RAM is the part which our computer uses as its physical memory.Many believe that one gigabyte of RAM is enough for virtually any non-professional application scenario. Unfortunately, that is not the case. Have you ever launched a recent gaming title with lots of resource-hungry applications already launched? Everything might seem fine as Windows relocates the applications' memory data to the swap file on your hard drive. However, as soon as you hit a Windows key accidentally, the OS will hectically try to exchange the gaming data in the main memory by the application data that was swapped before.
32 bit system
For a 32 bit there is always a physical limit of 4gb because we run out of address space.But the 4 gb limit is also theoretical the actual limit is equal to 4GB minus your video card memory and the address space allocated to a couple other hardware resourcse. Typically, the realistic maximum memory is somewhere betwee 2.5GB and 3.5GB.So having a more than 3gb is a waste on a 32 bit system.And if you have an expensive graphics card with 1 gb dedicated ram the situation is worse your system will see only about 2.5gb RAM.


64 bit system
People often say it is not worth upgrading to 64 bit if you don't have enough RAM.Well if you see the details for 32 bit system your system is actually seeing much less RAM than it actually has.One of the benefits of being able to run 64-bit native versions of applications is obviously a huge increase in memory capacity, but there are other added benefits. Because the kernel itself is running in 64-bit mode, it can easily accommodate the desires of a 32-bit Large Address application.

Limitations
The only problem in using 64 bit os is that it does not support the native 16 bit applications.But who uses those anyway?

Embrace the Future
The transition to 64-bit computing is like many technology transitions before: it requires some additional work and new learning. Nevertheless, it offers exciting new opportunities and potential.

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