The diagram shows 8 gray boxes (in 2 columns of 4). Each gray box is a core.
Above that is a detailed view of what each core looks like. There's a middle section labeled "Crossbar", and above that are 3 boxes labeled STP, MTP, and MTP. Below that are another 3 identical boxes. So each core has 4x MTPs and 2x STP.
What are those? The text of the same slide says MTP is "Multi-Threaded Pipelines" with "16 threads per pipeline" and STP is "Single-Threaded Pipelines" with (self-evidently) 1 thread per pipeline.
So, why do they consider that 1 core? Isn't that more like a "compute complex" of multiple cores, as seen on zen 2, but with different core architectures attached instead of 4 cores of the same design?
I'd be inclined to call them multiple cores myself, but if they all share the same pipe to main memory that would be a plausible reason to call them all the same core.
Maybe 2 higher-powered primary threads + 64 aux threads or something. I don't know how that makes sense as part of a single core but I don't have a better guess.
That's what it is, as shown on slide 6 (Die Architecture). Personally I would call this 16 big cores and 32 throughput cores but for some reason Intel is calling it 8 cores.
