Sven Groot said:Ion Todirel said:*snip*The x64 instruction set has some differences, particularly if you manipulate 64 bit integers. More importantly, it has also more registers, which can speed some things up.
However, pointers become twice the size and data alignment changes. As a result, your application will use more memory and might also create more cache misses which can slow things down.
Unless you need more than 2GB address space there's no reason to assume 64 bit will be faster, or slower. It's a complex question.
Thanks every one I install the 32bit for now because i still need office 2007 as well and you can not install office 2010 64bit while office 2007 is installed.
Also Office 2010 Pro Plus for £47.32 http://www.software4students.co.uk/Microsoft_Office_2010-software.aspx