Gigabyte recently revealed its Xtreme Gaming line of PSUs, which currently includes one 1.2 kW model. Obviously, that capacity point only addresses high-end enthusiasts with multiple graphics cards installed. Given the improved efficiency of 14/16 nm GPUs, though, unless you plan to use three- or four-way SLI/CrossFire, you shouldn't need more than a 1 kW PSU. Then again, ultra-aggressive overclocking will definitely affect the power requirements of less elaborate configurations. You see, at stock clock rates, modern GPUs can be power-friendly. But under extreme overclocking, all bets are off. If you're a hardcore tuner, a capable PSU like Gigabyte's XP1200M makes more sense.
wow what an overpriced garbage PSU, no thanks gigabyte.