hawk301

I Run an MSI 970 on 1440p with an OC (but no over-volt). Average fps on heaven is 58-59. I imagine for 3440x1440p you'll get about 256/344 times the average fps. Depends if this is good enough for you. 

I really like the Headset. It looks very nice and I´m also missing a good pair of headphones.

The difference between the RM series & RMi & RMx is that ONLY the RMi and RMx use completely Japanese capacitors and the RM also uses Taiwanese or Chinese, Corsair says that this is not impacting performance at all but Japanese capacitors have the reputation of being really good whereas the Taiwanese/Chinese have a lesser reputation. I have a RM550 (so with Taiwanese/Chinese capacitors) and it is running fine for almost 2 years already.
 
The difference between the RMi and RMx is that the RMi integrates Corsair Link functionality whereas the RMx series lacks this. The price of the RMx series is usually lower though. The performance should be exactly the same, the only difference being software monitoring/control through Corsair Link.
 
Sources:
http://www.corsair.com/en-gb/blog/2015/june/rm-rmi-hxi
http://www.anandtech.com/show/9625/the-corsair-rmx-and-rmi-1000w-power-supply-review

http://www.anandtech.com/show/9625/the-corsair-rmx-and-rmi-1000w-power-supply-review
 
The RMi basically just has Corsair Link and that's it.  Components are exactly the same.  RM series was made for low noise systems.

RM is different than RMx. From what I've HEARD, and remember, believe none of what you hear and half of what you see, that the RMx is basically the same thing as the RMi, just with less bells and whistles. They perform the same they said. 

Sorry neither Mindfactory, Alternate or Geizhals could find anything, seems like the Product is not available in Germany yet.