Diferrence between white PSU models?

[Vish Petrol]

Since I have a thermaltake core p3 snow case, I wanted to get a white or black/white set of cables, and after seeing how expensive they are I figured that I could just get a white psu which comes with white cables already and the corsair RMX models look the most affordable with a 10 year warranty, but there appears to be 2 variants of the same RMX models and the only difference I can see is an increase in depth of 20MM and a £20 increase in price.

750w
CP-9020187-UK £115 160mm depth

CP-9020155-UK £135 180mm depth


850W
CP-9020188-UK £130 160mm depth

CP-9020156-UK £150 180mm depth

Is it worth going for the larger dimensioned PSU, or is the smaller one a newer model which has been shrunk down. Is there any noticeable difference in operation?

Are there any other white PSU's that I should consider?

 

[Vish Petrol]

bump

 

[Vish Petrol]

Figured it out after reading a user review. The cheaper ones have nylon sleeved cables, and the more expensive ones are fully braided