PSU's - Whats the difference??

[xirokx]

Hi,

Can you kindly advise me as to what the difference is between these two PSU's? As a friend told me number one is much better than number 2 altho I can't see how.....

1) Antec SmartPower 2.0 500W 500PGB PSU - AtX 2.01 Dual

2) Antec NeoHE 500W Modular ATX2.0 PSU

Please advise comments

Thanks in advance...

Cheers!!!!