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Win XP 64 Bit


Rajiv

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No Windows XP 32 bit supports upto 4 Gig of system memory with 2GB dedicated per process. It cannot go beyond 2GB for any process running on the system.
4 GB theoretically, but I guess in 'reality' is more like 3 GB max, right? I can find links talking abt this. But will do so later.
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http://www.microsoft.com/windowsxp/64bit/overview.mspx Comparing 32-bit and 64-bit editions of Windows The major difference between 32-bit and 64-bit editions of Windows is memory support. With more memory, you can run more programs at the same time, and run more memory-intensive programs like multimedia, gaming, and database programs. And your computer's performance will be faster overall. Currently, 32-bit editions of Windows are capable of supporting up to 4 gigabytes (GB) of system memory, with up to 2 GB of dedicated memory per process. Windows Professional XP Edition x64 currently supports up to 128 GB of RAM, with the potential to support up to 16 terabytes of virtual memory as hardware capabilities and memory sizes improve. Another difference between 32-bit and 64-bit editions of Windows is the increased number of registers available on 64-bit processors. This enables faster performance for applications that perform intensive floating-point calculations. Windows XP Professional x64 Edition provides faster performance, increased reliability, and greater flexibility to today's most demanding users. With Windows XP Professional x64 Edition, you can take advantage of the new 64-bit technology to improve your PC or workstation performance. Not sure of... this 3Gig theory....
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http://www.microsoft.com/windowsxp/64bit/overview.mspx Comparing 32-bit and 64-bit editions of Windows The major difference between 32-bit and 64-bit editions of Windows is memory support. With more memory, you can run more programs at the same time, and run more memory-intensive programs like multimedia, gaming, and database programs. And your computer's performance will be faster overall. Currently, 32-bit editions of Windows are capable of supporting up to 4 gigabytes (GB) of system memory, with up to 2 GB of dedicated memory per process. Windows Professional XP Edition x64 currently supports up to 128 GB of RAM, with the potential to support up to 16 terabytes of virtual memory as hardware capabilities and memory sizes improve. Another difference between 32-bit and 64-bit editions of Windows is the increased number of registers available on 64-bit processors. This enables faster performance for applications that perform intensive floating-point calculations. Windows XP Professional x64 Edition provides faster performance, increased reliability, and greater flexibility to today's most demanding users. With Windows XP Professional x64 Edition, you can take advantage of the new 64-bit technology to improve your PC or workstation performance. Not sure of... this 3Gig theory....
If you put in 4 sticks of 1GB RAM you will only have 3.2 GB of available RAM. This is due to the memory range on the PCI express lanes on regular motherboards.
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Is this some kind of sick joke? Stay away from vista at all costs.
A lot of that is just (bad) hype. Vista works well for many folks. Ofcourse your mileage will vary based on the driver or apps you need to run. But many seem to have no issues with vista and their apps seem to be working well. (ps: Ofcourse the UAC is a minor nuisance, but still it is better safe than sorry! The Aero is cool though)
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