Surface Studio Gaming: GTX 965M vs GTX 980M

What’s the difference between the $3,499 Surface Studio vs the $4,199 Surface Studio? Main difference is GTX 965M vs 980M, but there’s more. See at Microsoft Store: http://geni.us/6CQEPSL

Full benchmarks and details: http://www.windowscentral.com/surface-studio-graphics-showdown