Well there is 25% from Willow Cove to Skylake, so you are looking at 20% increase from Willow Cove to Golden Cove, and another 20% from Golden Cove to Ocean Cove.

Not entirely impossible. Given some of these improvement has been sitting within Intel for years due to the delay in 10nm.

Not impossible, we are a long way from computronium but I'll believe it when I see it in independent benchmarks.