First we have the $1000 RX 6900 XT, which is targeted at Nvidia's $1500 RTX 3090. It has 8GB less RAM than the 3090, but seems to be about as fast. The 6900 XT is a 23 teraflop GPU.
Next up we have the $650 RX 6800 XT, which is targeted at Nvidia's $700 RTX 3080. It has 6 GB more RAM than the 3080 and uses 20 watts less power. It is rated at 20.7 teraflops.
Lastly we have the $580 RX 6800, which is targeted at Nvidia's older 2080 ti. It has 5 GB more RAM than the 2080ti and uses 10 watts less power. It is rated at 16 teraflops.
AMD opted to use GDDR6 memory instead of the more expensive and more power hungry GDDR6X modules that Nvidia is using on their 30 series. Instead AMD is attempting to improve RAM efficiency through the use of a high speed 128 MB cache.
AMD also announced that they are working on a competitor to Nvidia's DLSS which will be open technology and cross-platform instead of closed and locked like Nvidia's DLSS. However, their AI Super Sampler won't be ready until sometime after these cards release.Last edited by shikamaru317 - on 28 October 2020