Sadly not a web service, but very well organized: http://homepage.virgin.net/roy.longbottom/index.htm http://homepage.virgin.net/roy.longbottom/index.htm Tons

Sadly not a web service, but very well organized: http://homepage.virgin.net/roy.longbottom/index.htm http://homepage.virgin.net/roy.longbottom/index.htm Tons of different benchmarks with source code and very comprehensive data for legacy and contemporary hardware. They're free for personal use only. I'm sure you can contact him if you have something commercial in mind.