The base scores currently range from 1 to 5.9. The Windows Experience Index is designed to accommodate advances in computer technology. As hardware speed and performance improves, higher base scores will be introduced. However, the standards for each level of the index stay the same. For example, a computer scored as a 2.8 will remain a 2.8 unless you decide to upgrade the computer's hardware.
And:
A computer with a base score of 4 or 5 is able to run all new features of Windows Vista with full functionality, and it is able to support high-end, graphics-intensive experiences, such as multiplayer and 3‑D gaming and recording and playback of HDTV content. Computers with a base score of 5 were the highest performing computers available when Windows Vista was released.
Mind you for a ?500 PC I didn't really expect anything special.
I'm not decrying your PC, but I sometimes think Vista is all about style and not so much substance. If you want all the 3D graphics and addons you'll have to pay top dollar, something which in my eyes doesn't really represent value for money.
Of course if you use your top of the range graphics card for something other than windows features then its a different story..
Having said all that, if I had the money I would still opt for the top end machine.
