As always, with HEDT cpu's, it would be INCREDIBLY helpful if you guys could test the maximum all-core speed, both with stock boost and with an OC. This is what every DAW user needs to know, yet the info is almost impossible to find. For DAW use, we of course need lots of cores, but it's at LEAST as important to have individual core speed, so as to have the smallest HW buffer / realtime throughput. - And just one fast core won't help, since they all will be in use.
Oddly, even though this is the one area where Intel has surpassed AMD even in the last 2 years, they don't make it easy to find this out.
PLEASE consider adding this to all future HEDT tests.
You can often find the stock all-core boost frequencies by searching for a processor on Wikipedia. For example, on the page for the Cascade Lake architecture, the i9-10980XE is listed as having a 3.8GHz all-core boost, provided the processor has adequate cooling...
en.wikipedia.org
Overclocking results could vary from one chip to the next. And of course, Tom's is only reporting on an unsanctioned review posted at another site, since official reviews are not available yet. In any case, the exact clock rates shouldn't really matter that much, outside of comparing processors within the same family, since different architectures will tend to be faster or slower at various tasks, and benchmarks in actual software are likely to be more relevant.
As far as comparisons to AMD's recent processors are concerned, their 3000 series actually offers better performance-per-clock at many tasks compared to Intel's chips, helping to counter their somewhat lower clock rates. And in the case of AMD's 16-core Ryzen 3950X for their "mainstream" AM4 platform, it actually slightly exceeds the 10980XE's all-core boost clocks, with a 3.9GHz all-core boost, and offers a similar 4.7GHz single-core boost. It also appears to overclock to around 4.3GHz or a little higher all-core, based on reviews I've seen so far. Intel's chip does have 2 more cores, but with the 3950X having higher IPC at many tasks, it looks like it should be very competitive in terms of performance. With these higher core-count chips, it simply becomes impractical for Intel to push higher boost clocks on their aging 14nm process, as the power demands and heat output become too high. It might be possible to overclock the 10980XE even higher, but cooling the thing is going to be a challenge, especially if one wants to cool it relatively quietly, which seems like something that would be relevant for an audio workstation.
And that's not even getting into the HEDT offerings coming from AMD, which will be offering even higher core counts later this month. The Threadripper 3960X and 3970X offer 24 and 32 cores respectively, and at the kinds of heavily-multithreaded tasks you would get an HEDT processor for, it doesn't look like Intel will have anything in the HEDT space to counter them with. This is clearly why Intel decided it was necessary to halve the prices of these upcoming HEDT processors compared to the previous generation.