Despite not seeing any official update from AMD, the recent leak on the upcoming Radeon Navi GPU suggests that the GPU might be positioned in between the AMD Radeon RX Vega 56 and Nvidia GeForce GTX 1080.
According to the leaks, the AMD Navi GPU will feature a boost clock of 1800MHz, 8GB GDDR6 memory, a 256-bit memory bus with 410 GB/s memory bandwidth, and a surprisingly low TDP of 150W.
While we have yet to see the number of Stream Processors being mentioned on the leak, but it seems that the Navi GPU is equipped with AMD’s next generation Draw Stream Binning Rasterizer. Just so you know, the DSBR was previously enabled only on the Vega Frontier Edition. Other than having a newer generation DSBR, it also features a doubled L1 cache at 32kB and L2 cache at 3076kB – can’t really tell how will this affect the performance in overall, yet.
As for the price and availability, the leak did mention that AMD will probably be launching the Navi GPU on July 7th, 2019 at the price of $259. That is actually a really reasonable price, given that if the actual performance is indeed somewhere in between the AMD Radeon RX Vega 56 and Nvidia GeForce GTX 1080.
Then again, do take this with a grain of salt as these are just rumors and speculations that have yet to be confirmed by any reliable source.