3 different colour coordinated specs, I very much like.
First one is for silence, with a noise damped case and a passive cooler. It also has an i7, which isn't essential for a gaming rig (the i5 is more than enough 90% of the time) but doesnt harm. The 290 is good value too.
Second one is 'gaming rig' as is. No need to add another card or touch it at all. Just run it into the ground. Easy.
The third is ready to be added too, 970 SLI is on the cards (haha) and it will give you epic performance.
All great specs for compketely different reasons.. The choice is yours.. .