AMD Ryzen 7 5700 has been listed by Gigabyte
The new Ryzen is based on Cezanne APU, but lacks integrated graphics.
According to Gigabyte, there is a new AM4 processor compatible with their X570 motherboards. The CPU called Ryzen 7 5700 is not the same CPU as 5700G, 5700GE or even 5700X. Although it has more in common with the G-series as it is actually based on Cezanne silicon. The only difference is that 5700 non-G actually lacks integrated graphics.
The Ryzen 7 5700 has 8 cores and 16 threads and comes with a base clock of 3.7 GHz and boost up to 4.6 GHz. It is similar to the 5700G, except for the 100 MHz lower base clock. The CPU also has the same L2 cache of 4MB and L3 cache of 16MB, which is half of what the 5700X offers. Nevertheless, the most noticeable difference is the absence of integrated Vega GCN GPU support.
Gigabyte lists the CPU as A0 stepping, and it will use 65W TDP, the same TDP as all Ryzen 5000G series CPUs.
We have found no trace of this SKU on any other motherboard maker website (including ASRock, ASUS or MSI). However, new SKUs often pop up on random motherboard CPU support lists, so chances are others are listing this processor as well.