AMD is preparing the 6600 (XT) launch in August 2021. The card will allegedly arrive with a staggering MSRP price of U.S. $399, or around $100 lower than the one of RX 6700 XT. Ther cards are released as custom-design cards solely.
It is believed that the Radeon RX 6600 XT is based on 7 nm "Navi 23," however it needs to be seen whether that GPU is being used. The typical memory volume will be 8 GB, buffered by a 32 MB Infinity Cache via a 128-bit wide GDDR6 interface. The card is expected to perform ±5% of the RX 5700 XT and the GTX 1080 Ti, which could make it an imposing card at 1080p, or at 1440p with FSR.
The lack of a retail model of a reference-design (MBA) implies that the card is not offered via the AMD website.
August is named for an AMD Radeon RX 6600 XT release