Speccy will give you detailed statistics on every piece of hardware in your computer. Including CPU, Motherboard, RAM, Graphics Cards, Hard Disks, Optical Drives, Audio support. Additionally Speccy adds the temperatures of your different components, so you can easily see if there's a problem!
Processor brand and model
Hard drive size and speed
Amount of memory (RAM)
Graphics card
Operating system
http://www.filehippo.com/download_speccy/I prefer Speccy to CPU-Z, but those who prefer a non install program will like CPU-Z.
http://www.filehippo.com/download_cpuz/