As far as I know, armor only affects sprinting speed and stamina usage. Power attacks are independent of armor and cost the same no matter what you wear. I'm not sure about inventory weight. From my experience it doesn't affect speed at all, but enemies seemed to notice me easier when I had near to complete encumbrance.
As far as I know, armor only affects sprinting speed and stamina usage. Power attacks are independent of armor and cost the same no matter what you wear. I'm not sure about inventory weight. From my experience it doesn't affect speed at all, but enemies seemed to notice me easier when I had near to complete encumbrance.