The Minimum Hardware Requirements for Office 2010
You also need to devote more space on your hard disk. Compared to Office 2007 and Office 2003, Office 2010 consuming more disk space. This suite occupies 1GB - 1.5 GB of more space. This mark is because due to the code requirements of the Office 64-bit, the inclusion of OneNote and some free trial version of Office Professional 2010. Perhaps most disturbing is the demand for Office 2010 will be the processor Microsoft DirectX 9.0c-compliant graphics with 64MB video memory. This is needed to run the graphics in Excel and video integration feature in PowerPoint. Dubec said, computers with multicore processors will be faster to run Office 2010.
32-bit version of Office 2010 will be the way to the various operating systems 32-bit Microsoft, including Windows 7, Windows Vista Service Pack 1, Windows XP SP3, Windows Server 2008 and Windows Server 2003 R2 with MSXML 6.0. 64-bit version of Office 2010 will be the road to all 64-bit version of Windows 7, Windows Vista SP1, Windows Server 2008 R2 and Windows Server 2008. But will not work on Windows Server 2003 R2 with MSXML 6.0 or Windows XP SP3.