Patrick Schur today published on social media the preliminary specifications of the AMD Navi 21 XT GPU based on RDNA 2 architecture.

AMD Radeon RX 6000 series to boost up to 2.3 GHz?

What you should know however is that this data from Patrick is not based on AMD reference design. We have already been told that there are reference-based samples clocking up to 2.3 GHz, but there are also cards reaching 2.4 GHz. Those, however, are AIB models. A cut-down version (Navi 21 XL) should be clocked at around 2.2 GHz, our sources believe.

The big unknown is still the XTX variant. It all appears that Navi 21 XTX is AMD exclusive. It is possibly a higher clocked version with more CUs enabled, but AIbs have no further information at the moment.

What is certain is that Navi 21 XT will be the Big Navi we are all waiting for. The card that should beat GeForce RTX 3070, but the performance in comparison to RTX 3080 is still not clear. AMD has published the first benchmark results of the graphics card at 4K resolution (attached later in the post).

All three variants (XTX, XT and XL) would feature 16GB GDDR6 memory across a 256-bit interface. The Big Navi card are to feature a special cache, possibly codenamed Infinity Cache , however, the details on its operation are still scarce.

The TGP (total graphics power) of 255W is more than likely for the custom AIB variant. We are not sure if the same value will be used for the reference design, but one would guess that an AMD version clocked 100 MHz lower could use a lower TGP.

AMD will unveil Radeon RX 6000 series on October 28th.

AMD Radeon RX 6000 Perforamnce, Source: AMD

Source: Patrick Schur