X5460 or E5450 for small home server?

[Younes]

I am planning on doing the LGA771 to LGA775 mod for a small home server, the server won't be on 24/7.

X5460
3.17 GHz 9.5x | 2 x 6 MB | 1333 | 120 W | 45nm

E5450
3.00 GHz 9.0x | 2 x 6 MB | 1333 | 80 W | 45nm

I'm planning on overclocking my CPU.
My question is; would the better overclocking capabilities of the X5460 outweigh the lower power cost of the E5450 and what one would you chose.

 

[SPBHM]

the .5 higher multiplier can be quite nice to have if you are going to OC.

as for power... you could undervolt and underclock the X5460 a little bit and get similar power usage...