Good app for detailed specs of system?

I have had this system since April, but now may sell to get a laptop. Problem is I have lost track of what I did with the specs since this was made to order.
Would Everest give more details than BelArc?
For example: Is there an app which would say 4 gigs RAM at 800?

 

SIW is very detailed. Make sure when you install it you pay attention!...it will offer to add a toolbar to your browser on one of the screens--you probably don't want it.

Run it and scroll down to Hardware for detailed specifications. Under Memory it will give you manufacturer and specs for each stick of RAM.

 

Sounds great. Thanks very much.

 

Everest is good, SIW is good, personally, I like PCWizard, or the paid version of Everest. The free version of Everest is no longer being actively developed and hasn't been 'updated' in about 3 years. To be totally honest, there's many real good ones in addition to what's been mentioned here. Check out the Major Geeks System Info section and you'll find a bunch of great apps, most are free. HWiNFO32 was $hareware but is now free, and it's real good too....
:-D