AMD Radeon RX 6600 XT and RX 6600 Surface in Regulatory Filing | TechPowerUp
 
Even as the desktop Radeon RX 6700 (non-XT) is nowhere in sight, AMD is planning to scale its RDNA2 graphics architecture further down, with the RX 6600 XT and RX 6600. Regulatory filings by board partner ASRock with the Eurasian Economic Commission (EEC), for the unreleased RX 6600 XT and RX 6600, hit the web, courtesy Komachi Ensaka. The filings list out internal SKU numbers. An interesting thing to note here is that both the RX 6600 XT and RX 6600 could have 8 GB of memory as standard. Given that the RX 6700 series is already pulling up to 12 GB over a 192-bit wide memory bus, it's likely that the RX 6600 series could use a narrower 128-bit bus for its 8 GB, use the fastest 16 Gbps memory chips (at least on the XT variant), and attempt to shore up memory bandwidth using Infinity Cache. A market launch typically follows EEC filings by 3 months, so the RX 6600 series could see a late-Summer launch.
 
In my opinion it will difficult to buy one due to the semiconductor shortage.