XP Pro 32 bit maximum RAM ? - Dell Community.
One of the major differences between a 32-bit and 64-bit Windows is the support for more than 4GB of RAM. Here is good news for Windows 8, 7 and Vista users because we have some patches here to make your 32-bit Windows support more than 4GB of memory.
On a computer that is running Windows 7, the usable memory (RAM) may be less than the installed memory. For example, a 32-bit version of Windows 7 may report that there is only 3.5 GB of usable system memory on a computer that has 4 GB of memory installed.
The 32-bit version of Windows 7 Ultimate support up to 4 GB RAM while the 64-bit version supports up to 192 GB RAM. Compared to Home Premium and Professional, the Ultimate version has more features like BitLocker Drive Encryption and Multilingual User Interface. Windows 7 supports a maximum of 1 physical processor in Home Basic and Home Premium Edition, while Ultimate Edition supports 2.
Fully reloaded with brand new Windows 7 Pro 32 bit. It has an 80GB professionally refurbished hard drive and will arrive with a genuine Fujitsu charger and free UPS EXPRESS delivery included in our price. Ex-educational machine, so has had regular servicing. The RAM has been upgraded to 2GB, making the machine nippy around the internet. It has 3 x USBs and a DVD drive. It has a nippy 2.0Ghz.
Windows 7 has a minimum memory requirement of 1 GB RAM (32-bit) or 2 GB RAM (64-bit). The maximum amount of memory depends on the edition used: The maximum amount of memory depends on the edition used.
The maximum theoretical heap limit for the 32-bit JVM is 4G. Due to various additional constraints such as available swap, kernel address space usage, memory fragmentation, and VM overhead, in practice the limit can be much lower. On most modern 32-bit Windows systems the maximum heap size will range from 1.4G to 1.6G. On 32-bit Solaris kernels.
Thus, if you install Windows 7 64-bit on a 4 GB machine you won't waste 1 GB of RAM like you would with Windows 7 32-bit. Moreover, it is only a matter of time until 3GB will no longer be enough for modern applications. One example is Windows 7's XP Mode feature, which allows you to use legacy applications within a virtual machine running within Windows XP. This feature might prove to be.