A leaked document from AMD has confirmed that its RX 6600 (non-XT) graphics card will launch on October 13, and we can now confirm its specifications. It will have 8GB of GDDR6 memory running at the same 16Gbps speed, with a 128-bit memory busy, as the RX 6600 XT. That should give it an equivalent 256GBps bandwidth. Where it will fall behind the XT version, is in its shader units, of which it will have 1,792. Boost clock speeds have yet to be announced.
AMD's RX 6000 range of graphics cards is relatively fleshed out at this point, and we eagerly await a refresh in the new year to combat Nvidia's planned Super variants of its RTX graphics cards. However, AMD has at least one more card planned before then: the RX 6600. It joins the exiswting RX 6600 XT, 6700 XT, 6800 XT, and 6900 XT as the baby of the bunch. It'll have the weakest performance, offer probably quite awful ray tracing performance, and will be a relatively low power card.
However, with the absolute lack of any real GPU stock, it could be an absolute steal. It should have performance equivalent to that of an RX 5700, which would make it solid for 1080p and some 1440p gaming, as well as giving it at least the option of playing ray traced games, albeit at low performance. It'll be a great pick for smaller ITX builds, though, and could potentially even operate passively in the right gaming PC.
Expect more details when the review embargo lifts on October 13, but it'll sell out fast, so if you get the chance to put a pre-order in and want one of these cards, grab one while you can.