The first images of the validation boards for EPYC Genoa CPUs have surfaced on the web.  SP5 socket is a massive 7.5 cm high and 7.2 cm wide, making it suitable for next-generation Zen4 data-center CPUs. 

The EPYC 7004 series, codenamed Genoa, will have up to 96 cores, while Bergamo, with Zen4 cores, will have up to 128 cores. The same SP5 socket will accommodate both series. Genoa will be AMD's first server product to use the new "Zen 4" CPU cores and next-generation I/O such as DDR5 memory and PCI-Express Gen 5. SP5, like its predecessor SP3, is a 6,096-pin land-grid array (LGA) connector. The socket's design corresponds to the blueprints disclosed in last year's Gigabyte attack. In addition, 12-channel DDR5 memory is visible, which is a new feature of the Zen4 EPYC series. According to the PCB schematics, each of the four segments of the SP5 socket is linked to one of the 12 DIMMs' subchannels.

First Genoa MCM photo: source phatal187 (Twitter)

Genoa processors will have up to 96 cores and 192 threads. They are built on the TSMC N5 process technology and have the Zen4 microarchitecture. AMD has not yet announced if the EPYC 7004 series would include 3D V-Cache, like the Milan-X series did last year. The first images of the next-generation EPYC motherboard have been uploaded on the ServeTheHome forums.  Check them below.

Here is an AMD SP5 socket (LGA6096) for EPYC Zen4 Genoa processors - (updated with photo)