Are there any advantages to running a 64 bit OS on 4GB of RAM? [duplicate]

You will get an extra .3-.7 ish GB of memory depending on other hardware such as graphics.

However, in all honesty, there are not many improvements in x64 windows over x86 unless you actually make use of applications that are only available in 64-bit editions or are always at around 90% memory utilisation.

There is a lot of talk about 64 bit being more stable, however, I have never really had a problem on any 32-bit system that I would say were because it was 32-bit.

I was shocked to find that 32-bit Windows on my T9300 CPU loads 4 seconds quicker than 64-bit Windows and I noticed other small slow downs in areas... Actually using Windows, I found very little difference.

At the end of the day, I honestly do not think x64 is bad, 32-bit software runs pretty much the same speed on both and 64-bit compiled software is generally faster.

I personally use x64 Windows, I would say if you have 4GB, it is a hard choice (I personally would go for it), If you have over 4GBs, it is a no-brainer to use x64 Windows.

First of all, there are more benefits to a 64bit OS than just RAM. 64bit systems also have more cpu registers that a 64bit OS will know how to take advantage of. There are other optimizations as well.

As for RAM, if you check your system I think you'll find you're not using all of your RAM right now. Other devices in your system share the 4GB of address space with your RAM.