EPYC 7303 would be the game changer of this series. Their processing capability and speed is far better than any other models available. Basically it's a server processor, that's why it released silently.
I would be wary whether the 64MB L3 cache implies that the 7303(P) are implemented with 2 CPU chiplets only. If that is the case, they can not saturate the 8 channel memory controller. One needs at least 4 chiplest for that due to the speed of the InfinityFabric links. They might be a good fit for IO-oriented workloads, where the unutilised bandwidth is used for the IO transfers. But that is to say, they seem to be quite specialized SKUs.