They were due to either release more S9's or something like this. Doesn't matter too much as they're close in efficiency.
This is like a 30% difference in efficiency, not sure that is very close (unless my math is wrong, it is early)
its actually about 20%. 400 vs 480w
S9 spec:
Power Consumption 1078W +10% (Batch 22 11TH) (at the wall, with Bitmain’s APW3 PSU,93% efficiency, 25°C ambient temp)
T9 spec:
Power Consumption 1450W +7% (at the wall, with Bitmain's APW3 PSU, 93% efficiency, 25°C ambient temperature)
I am still trying to figure out how this is a good thing --or-- how I can convince myself to buy T9s?