well last to batches from knc make 120mil difficulty jump.
I'ts not all knc but it is good part of it.
ASIC was a disruptive technology and the jumps were huge when they first launched, trend I am seeing in recent jumps seems to be leveling off (relatively, prior ~6 month window). I think we will see a steady rise but the massive breakpoint-type jumps earlier in 2013 was due to disruption. The new miners don't offer price or technology innovation that I am aware of, it's more like the evolution/refinement of what we already have rather than another event of creative destruction. Am I right on that?
Another way to think about it: ASICs almost immediately made GPU mining completely inefficient. This type of evolution is referred to as creative destruction. Good example is the transportation industry in the 20th century: horses>automobiles>railway>air travel. My understanding is existing ASICs can still produce the same hash rates as the new stuff if you actually have enough space for them all. Things eventually flatten out; people can still get from A to B in their 1960 Chevy, not so much with a horse, eh, maybe a poor example...
Anyways, in that sense, there's no creative destruction or introduction of a new disruptive technology happening, it's just maturation and refinement of what exists today. I have only glanced at the new gear, but since it's not available yet I have not invested any real time researching. At a cursory glance I'm viewing the new products the same way as I view new iPhones; sure they come out and offer greater efficiency and handle more complicated tasks with ease, but it was the introduction of the smartphone that disrupted the market and even spilled over to steal dollars from GPS companies etc etc... The ASIC introduction spiked difficulty and rendered existing technology (at the time) immediately obsolete, but this new stuff does not seem to be offering un-achievable hashing speeds or anything that can't be done with a shit-ton of blades. New products are great, but not every new thing will have the same impact as the first round of ASICs did. My $0.02 based on what I know so far, FWIW.