The Microsoft Office 2010 Engineering blog has  announced the system requirements for Microsoft Office 2010. In Office 2010 System Requirements post (Microsoft Office 2010 Engineering, The official blog of the Microsoft Office product development group) there are some information interesting to know for new or upgrade MS Office 2010 installations.

Follow an extract from the most rilevant part of  Office 2010 System Requirements article:
Can I use Office 2010 on the same hardware I’m using to run Office 2007?

In most cases, yes! CPU and RAM requirements for Office 2010 are the same as for Office 2007, so if your computer meets the Office 2007 system requirements, you can run Office 2010. A graphics chipset will help boost the performance of certain features and disk footprint has increased (more on these points later), but as general rules:

- If your current computer can run Office 2007, it can run Office 2010.
- If you’re purchasing a new laptop or netbook, it can run Office 2010.
- If you have a computer with a multi-core processor, it can run Office 2010 even faster.
- If your computer is currently running Office 2003, it’s possible that it can run Office 2010

How do we approach Office 2010’s hardware requirements?

CPU and RAM requirements approximately doubled between Office 2003 and Office 2007, as you can see below:

What operating systems are supported?

To determine which operating systems would be supported for Office 2010, we prioritized based on usage statistics for a given OS, as well as the engineering costs associated with ensuring compatibility and providing customer support for that OS. The following charts summarize OS compatibility for Office 2010.

Read more at TechNet Blogs article.