Possibly real then uh?
According to my calculations the main GPU would have some 1024 GFLOPS of theoretical performance. Considering the efficiency of modern AMD GPUs (around 15 GFLOPS/Watt), it's very possible the power draw, and pricing, are more or less correct. Should it release for the same price as the Wii-U, it would be a huge blow to Nintendo, unless it had a pricecut by then (assuming Wii-U releases for $299).