Utterly Mad

What card do you have now? Not entirely sur what the pricing in Europe is, since I use the Great Empires Pound Sterling, but I'd recommend the RX 470 or the GTX 1070, don't bother with the RX 480, it's quite a bit more expensive than the RX 470 and isn't much better.

The GTX 1070 is the stronger card, but it's also twice the price of the RX 470. If you do go for the GTX 1070 then get the EVGA FTW version, their customer support is pretty much unbeatable and the FTW is one of the best aftermarket 1070S.