I do have a side panel, although it isn't a clear one. However, I was planning to get a new case shortly after I got this upgrade, with a better side panel, but I am still searching for a good one of around €50-€70.Yeah its compatible. Are you sure you want to spend the money on the RGB ram? Do you have a case with clear side panel? If not, doesn't make sense.
Not a huge one. The X generally has a higher XFR rate, but you can manually overclock to the same speed. TDP doesn't play an enormous factor for overclocking between the two. I'd just get the cheaper on personally.@johnb35 I assume taking the 1600x instead of the 1600 wouldn't make a difference?