What rims are these?

Those Halo's look nice but they're machined. Looking at the different weights of rims - the Fusion is 45g less than the Deep V. Would this be noticeable when accelerating?

90g/pair of rotational mass will make some difference, but outside of the track/race - nothing to worry about - you could offset the extra weight by choosing a lighter tyre/tube - there is easily 90g to be saved in tyre and tube choice.