AMD Radeon RX 6600 Final Specifications and Official Performance leaked - VideoCardz.com
AMD Radeon RX 6600 launches October 13th We have the final specifications and performance figures for the next SKU from the AMD RDNA2 series. The Radeon RX 6600 non-XT will feature 1792 Stream Processors, a reduction of 256 cores compared to the XT variant. At launch this card will be the...
No MSRP is given, not that it matters.
One thing notable is that the article mentions that there's an "up to" qualifier for the 8 GB of memory. So there might be 4 GB models released at some point.