Top Card with 4GB

Despite all the cries that no 970 4GB use, they do it anyway!
3.5GB run with 224 bits, the remaining 512MB 32-bit. Power loss ~ 7% when the memory is full really, but still faster than reloading from the RAM. Can be found at computerbase.de

One should mention that this model 1x6 PIN and PIN 1x8 power connectors needs.
Does not each power supply, so watch out! 6 + 2 also belong to the 8PIN.
The complete PC draws under load a maximum of 300 watts, in less demanding games rather 150-190 when Vsync is on.
The fans keep themselves in games mostly silent, except for benchmarks as they make noise.

3770K, GTX970, no overclocking.