I think they took out your 1GB memory chip probably and installed a 512 ram module and stuck in an old AMD athlon cpu too.
Anyway, you need to stop worrying about those geekbench score results and such. You will get a different number each time you try and in the end they dont mean much.
Enjoy your phone, if you have a serious hardware malfunction then ask to have it replaced. Dont get obsessed over nothing.
What's a serious hardware malfunction ?