You Need to "Bench Mark" you new build or get benchmarks before you build here are some links.
1. http://www.anandtech.com/bench/CPU/2 (http://www.anandtech.com/bench/CPU/2)
2. http://www.tomshardware.com/us/#redir (http://www.tomshardware.com/us/#redir) Click on the tabs you want to review
3. http://www.passmark.com/products/pt.htm (http://www.passmark.com/products/pt.htm) "PassMark PerformanceTest" This link is a 30 day free trial to bench mark your own system and compare to other systems.Click on the download "PassMark PerformanceTest".
4.http://www.passmark.com/products/bit.htm (http://www.passmark.com/products/bit.htm) PassMark BurnInTest This link is a 30 day free trial to bench mark your own system and compare to other systems.Click on the download " PassMark BurnInTest".
5. http://www.softpedia.com/get/Others/Home-Education/Prime95.shtml (http://www.softpedia.com/get/Others/Home-Education/Prime95.shtml) " Prime95 " download " Prime95 "