Overall Windows System Performance Rating
Windows Experience Index
Windows Experience Index for Windows Vista RC1 Ultimate Edition (Build 5600)
Processor : Calculations per second 4.0 AMD Athlon(tm) 64 Processor 3200+ 2.01GHz
Memory (RAM) : Memory Operations per second 4.3 1023 MB
Graphics : Desktop performance for Windows Areo 4.0
Gaming Graphics : 3D business and gaming graphics performance 4.2
Primary Hard Disk : Disk data transfer rate 2.8
For detailed explanation please read Windows 7 guide What is Windows Experience Index?