Outlook 2010 System Requirements

From: Microsoft TechNet

Component	Requirement
Computer and processor	500-megahertz (MHz) processor or higher
Memory	512 megabytes (MB) OF RAM recommended for accessing Outlook data files larger than 1GB.
Hard Disk	2 gigabyte (GB) available disk space
Display	1024 × 576 or higher resolution monitor
Operating System	Windows XP with Service Pack (SP) 3 (32-bit), Windows Vista with SP1, Windows Server 2003 R2 with MSXML 6.0, Windows Server 2008 or later (32-bit or 64-bit), Windows 7 or later operating system.
For integration with Microsoft Exchange Server 2010 (optional)	For a list of some of the new Outlook 2010 features that are enabled with Microsoft Exchange Server 2010, see Changes in Outlook 2010 and What’s New in Exchange Server 2010 (http://go.microsoft.com/fwlink/?linkId=164425). Exchange 2010 System Requirements (http://go.microsoft.com/fwlink/?linkId=164426) Learn more about Microsoft Exchange Server 2010 (http://go.microsoft.com/fwlink/?linkId=164427)
For integration with Microsoft Lync Server 2007 R2 (optional)	For a list of some of the new Outlook 2010 features that are enabled with Microsoft Lync 2007 R2, see Changes in Outlook 2010. Supported Topologies and Infrastructure Requirements (http://go.microsoft.com/fwlink/?linkId=164429) Learn more about Microsoft Office Communications Server 2007 R2 (http://go.microsoft.com/fwlink/?linkId=164430)
Others	Microsoft Exchange Server 2003 is the earliest version for using Exchange Server with Outlook 2010. Certain inking features require running Windows XP Tablet PC Edition or later; speech recognition functionality requires a close-talk microphone and audio output device; Information Rights Management features require access to a Windows Server 2003 with SP1 or later running Windows Rights Management Services. Connectivity to Windows Server 2003 with SP1 or later running Windows SharePoint Services is required for certain advanced collaboration functionality. Connectivity to Office SharePoint Server 2007 is required for certain advanced functionality. Use of graphics hardware acceleration requires DirectX 9.0c compatible graphics card with drivers dated 11/1/2004 or later. Internet Explorer 6 or later, 32-bit browser only. Internet functionality requires Internet access (fees might apply). Actual requirements and product functionality might vary based on the system configuration and operating system. Seehttp://www.office.com/products (http://go.microsoft.com/fwlink/?LinkId=169378). Grammar and contextual spelling in Outlook is not turned on unless the computer has 1 GB memory.