Re: Extra RAM useful?
You're both partially correct.
Windows 32bit can only address 4GB of memory, that includes everything, graphics card etc, so with a 512MB graphics card Windows 32bit will report 4GB - 512MB = either 3.25GB or 3.5GB (depends on what other devices in the system use memory)
If the memory is well priced and you have the money then go for it, especially if you're intending to go 64bit in the near future.
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