I am in the process of selecting a graphics card for a second build project I'm working on and the narrowed down choice is currently between an Asus GTX780 Ti DCII or an Asus ROG Mars 760. I'm using the 780 in my primary build, so I'm pretty much sold on all its features - except the price (£550 approx in the UK). The Mars I can pick up for around £350 and I've heard some pretty good things about it, except power draw - nearly 480 Watts at full load. The PSU I'm planning to use is an AX760i, which should be OK with the 780 as I'm not planning on overclocking this rig. The other hardware on board is an i7 4770k, Maximus Hero VI mobo, Samsung SSD & WD 1Tb HDD, Corsair H100i and 5 Corsair SP120's - oh and Asus Blu-Ray drive. My question is, with all this gear, will the Mars work? Will there be enough power available or should I go with a higher PSU or the 100Watt lower (and £200 higher) 780Ti?