The spec looks a bit unbalanced with only 8GB RAM - really just entry level for Photoshop.
The i7 has a larger capacity hard drive 512GB vs 256GB for the i5
Take a look here
I agree with Ged, go for the i7 512GB. Even though your only retouching in Photoshop, when you have less Ram your stratch disk can get full pretty quickly and that will slow down your computer.
Ok thanks for help everyone.
I’m reluctant to spend the extra money for the next one up, trying to save a bit.
With that in mind then, would you recommend I’m better off getting somethig that’s an I7 is a lower spec in other areas compared to these.
Something like this: