Graphics: 500 MHz Vs. 550 MHz

[One-More-Round]

If I have a car that has 550 Hp and you got 500 who's got the more powerful car?

Is Sony's NVIDIA more powerful just because it has 50 more MHz than 360's?

Please state your credentials when answering, I do not want someone who works at Wal-Mart answering this.

Understood?

Thank you guys and galz!

 

PS. dont forget to vote