AMD is in constant progress with its Radeon graphics card lineup and the company is always working on new models that will better suit the market. Today, we have interesting discovery. On Weibo, a Chinese microblogging website, a user has posted pictures of what appears to be an engineering sample of AMD's Radeon RX 6900 XTX graphics card variant. Having an all-in-one (AIO) water-cooled design with a 120 mm radiator, the card resembles a power-hungry design as we have seen with Radeon R9 Fury X and RX Vega 64 Liquid Edition, which were both graphics cards equipped with AIO water cooling. This engineering sample is no different.

Under the waterblock, there is a Navi 21 XTXH GPU SKU hidden. As we found out, this is a new Navi 21 XTX SKU that just features better binning compared to Navi 21 XTX, and thus it offers better overclocking potential. It is already present in three new models from various AIBs, like the PowerColor RX 6900 XT Liquid Devil Ultimate, ASRock RX 6900 XT OC Formula, and Sapphire RX 6900 XT Toxic Extreme graphics cards. It seems like AMD has prepared itself to launch this specific SKU in a reference design form, however, so far only AIBs have used the Navi 21 XTXH SKU. It is not yet clear if the Radeon RX 6900 XTX is ever going to hit the retail market, or it shall remain as it is - just an engineering sample.

Overclocker extraordinnaire Roman "der8auer" Hartung has achieved a new world record for GPU clockspeed with the help of exotic cooling and PowerColor's RX 6900 XT Liquid Devil Ultimate. The PowerColor Red Devil Ultimate features the latest and greatest bin of any RX 6900 XT chip, featuring AMD's Navi 21 XTXH silicon (device ID 0x73AF), with improved clockspeed potential and lower leakage than the usual XT cadre of chips. Using LN2 cooling which dropped the operating temperatures of the card down to a finger-killing -87 °C, the overclocker managed to reach a 3,225 MHz clock - as reported by our very own GPU-Z, which continues to be the diagnostics tool of choice for graphics cards. Look after the break for the full video leading up to this overclocking feat.