Of course they are, Broadwell-E has 5-10% higher IPC than Haswell-E.I ran my 5960x at 3.375 core/ 3.375 cache and 3.5 core/ 3.5 cache at 150 samples for three runs each.
This is a brand new Windows 10 install with zero background programs. I even waited for all background processes to stop so CPU usage was at 0%.
3.375: 38.81 / 38.15 / 38.15
3.500: 37.41 / 36.68 / 36.61
This still doesn't quite seem right compared to AMD's results, especially given my cache is technically overclocked at both speeds and I have fast memory (3000 MHz).
If the 6900k was running at 3.5 during the test, it sorta seems reasonable it might score 0.8 seconds faster. But this would make it seem AMD is claiming to have higher IPC than even Haswell, at least in this test.
I'm pretty sure we've come to the conclusion at this point that the 25 second press demo was at 100 samples, and the livestreamed 36 second New Horizons demo was at 150.