What is the difference between Windows 7 Ultimate x64 to x86?

The difference between windows 7 x86 (x32) to Windows 7 x64 Ultimate x64!

* 64Bit OS can handle larger amounts of information than a 32Bit system.

* More working memory (over 4GB)

* When you run many programs simultaneously.

* If you are using newest hardware.

Advantages x32 (x86):

* You have many older software whitout 64bit(Windows 7 x64) support.

* If you are using older hardware.

Win 7 System requirements 64-bit (x64)

CPU mit 1 GHz, 20 GByte Disk, 2 GByte RAM, DirectX-9-Graphics

Win 7 System requirements 32-bit (x86)

CPU mit 1 GHz, 16 GByte Disk, 1 GByte RAM, DirectX-9-Graphics