GTX 980 vs. GTX 980M SLI

Question Title

* 1. Choose your weapon!

XMG U726 + GTX 980 @ 200W = 2777,- €

XMG U726 + 2x GTX 970M SLI = 2499,- €

XMG U716 + GTX 980 @ 180W = 2599,- €

XMG U726 + 2x GTX 980M SLI = 3242,- €

(All prices subject to change without prior notice. Each price represents a starting configuration with Full-HD IPS G-SYNC, Intel Core i5-6600, 8GB RAM, HDD, WiFi and 2 year warranty.)