p55 vs p45

What is the difference ?
The both have Intel® P45 / ICH10R and 2 x PCIe 2.0 x16 (8x when in cf)

Does one clock better or are they jsut the same thing and I should get the cheeper of the 2 ?

One is socket 775 and the other 1156.

Correct. they are completely different generations and tak different chips all together.

Ok For a second there i thought I was going crazy . It is miss labled as a p55 on the site im looking @

So a better question is there any reason to get the p5q Deluxe vs the d5q Pro ?

Those were the 2 mbs I was looking @ and was wondering why the had such close specs but "different chipsets"

The DLX looks like it has dual gig lans where the pro doesnt but the pro can do ddr 1300 vs the 1200 on the DLX

The Deluxe has 16 phase power, and the Pro has 8 phase.

The Deluxe also has right angled SATA ports, and power/CMOS reset buttons.

The delux has cooling on both banks of mosfets compared to the Pro which has only one bank cooled.
That said, i'm running a 1.5vcore right now and a 120mm fan aimed at the mosfets and they are just barely warm to the touch.