On the website of USA based Newegg, there is an insider blog post. And whoever wrote it, is listing a table including Radeon RX 6700 XT, 6800 XT and 6900 XT specifications. Yeah, that's RDNA2, Big Navi.

We have no clue as to why the information is still present at Newegg, but it is, check for yourself.  The next AMD flagship would be named RX 6900 XT and would get 5,120 shading processors tied to a base clock speed of 1,500 MHz. This card gets 16 GB of gddr6 memory based on a 256-bit memory bus. So that means 512 GB/s of memory bandwidth and in fact, would be equal to the bandwidth of the RTX 3070. The TDO listed is 300 watts. According to rumors, the product performance sits between the RTX 3070 and the 3080.

Second, to best would be the Radeon RX 6700 XT that would get GB gddr6 and thus a 192-bit memory bus with a power consumption of 200 watts. The base clock speed is listed at of 1,500 MHz, actually for all three cards listed. This card would get 3840 shading processors.

The smallest model is the Radeon RX 6700 XT has 2,560 cores (similar to RX 5700 XT)and sees a power consumption at 150 watts. This card again is tied to a 192-bit wide memory bus and gets 6GB of GDDR6 memory. As to the validity of these specs, hey we know as much as you do. We do think that somebody contributed the content based on speculation or two, and Newegg posted it.

Newegg is listing Radeon RX 6700 XT, 6800 XT and 6900 XT specs in its blog