If you can spend an extra 20 euros though I'd go for this memory instead.
8GB 3000 dual channel ddr4 2x4GB sticks
http://www.e-shop.gr/ram-gskill-f4-3...t-p-PER.557873
Ryzen likes the higher speed for 1080p and since you have a 144hz monitor it makes sense. Up to you though.
http://www.legitreviews.com/ddr4-mem...-cpus_192259/4