According to Igor Wallossek from Igor’sLAB, a ‘very special board partner’ graphics card based on Navi 21 GPU will feature a boost clock of 2577 MHz. Now, before we all get too excited, Igor did not mention which SKU this is (XTX, XT or XL). He did say that this is a boost clock, meaning this is not the ‘actual’ clock speed of the graphics card. This Radeon RX 6000 model will likely stay at 2.3-2.4 clocks, where AMD’s ‘gaming clock’ is more representative of what may be seen during gameplay.Three models are expected to be announced one week from now, at AMD's October 28th virtual event. This includes the Radeon RX 6900XT, RX 6800XT, and RX 6800. The RX 6900 XT is said to be an AMD-exclusive card, at least at first.