AMD’s unreleased Radeon RX 6900 XTX Liquid Cooled graphics card featuring the Big Navi 21 XTX GPU has been pictured. The graphics card, which will never be released in the consumer segment, was going to be a liquid-cooled variant of the existing RX 6900 XT graphics card but was canceled due to unknown reasons.
AMD Radeon RX 6900 XTX Liquid Cooled Graphics Card With 120mm AIO Solution Pictured
The AMD Radeon RX 6900 XT reference model comes with a triple-fan cooling solution but it looks like AMD had initially planned to offer a liquid-cooled variant too. This graphics card was going to be known as the Radeon RX 6900 XTX Liquid Cooled and as such, came with an AIO liquid cooling solution to cool down the Big Navi 21 XTX GPU.
The card follows the same design scheme as the existing Radeon RX 6000 RDNA 2 series graphics cards with a silver and black colour scheme. The card has two glossy aluminum plates and a large Radeon ‘R’ logo in the middle. The card would have featured a dual-slot design and came with an AIO liquid cooling solution. The packaging shows the card featuring a 120mm AIO radiator and has an RGB accent LED on the side. The card features the reference PCB design with dual 8-pin power connectors.
This card never came to fruition but we could think of a couple of reasons. First, the 120mm AIO cooling solution might have been inadequate for the card itself as we have seen multiple custom designs making use of either 240mm or 360mm cooling solutions. The ASUS ROG STRIX RX 6900 XT LC and the Sapphire Radeon RX 6900 XT Toxic show that the Big Navi 21 XT GPU was designed for higher-end cooling solutions. AMD also partnered with EKWB to launch its own Quantum Reaction AIO solutions for the RX 6900 XT & RX 6800 XT reference graphics cards. The other reason could be the availability of higher-binned chips. AMD just recently started shipping its Navi 21 XTXH dies to partners which offer higher clock and power limits so this XTX variant could’ve been abandoned in favor of partner designs that offer better overall performance.
AMD RX 6900 XTX “Big Navi 21 XTX” GPU Powered Liquid Cooled Graphics Card
The AMD Radeon RX 6900 XTX Liquid Cooled graphics card would’ve come packed with the Navi 21 XTX GPU which is the fully enabled die featuring 80 Compute Units or 5120 SPs. The card will also feature 16 GB of GDDR6 memory across a 256-bit bus interface, a 512 GB/s total bandwidth, and clock speeds of 2015 MHz base and 2250 MHz boost at reference specs. There are also 80 Ray accelerators for ray-tracing enablement on the graphics cards (one RA per Compute Unit). The graphics card will feature a TBP of 300W.
In addition to the standard memory, the Radeon RX 6900 XTX Liquid-cooled graphics card would also have featured 128 MB of Infinity Cache on the GPU die. The cache will help boost bandwidth for higher performance at resolutions beyond 1080p HD. The 128 MB Infinity Cache boosts the standard 512 GB/s bandwidth by 3.25x, delivering an effective bandwidth of up to 1.664 TB/s across all Big Navi GPU-based graphics cards.
The reference AMD Radeon RX 6900 XT had a price of $999 US so the Radeon RX 6900 XTX Liquid-cooled would have sold for over $1200 US due to its premium design.
AMD Radeon RX 6000 Series “RDNA 2” Graphics Card Lineup:
|Graphics Card||AMD Radeon RX 6500 XT||AMD Radeon RX 6600 XT||AMD Radeon RX 6700||AMD Radeon RX 6700 XT||AMD Radeon RX 6800||AMD Radeon RX 6800 XT||AMD Radeon RX 6900 XT|
|GPU||Navi 23?||Navi 22?||Navi 22 (XL?)||Navi 22 (XT?)||Navi 21 XL||Navi 21 XT||Navi 21 XTX|
|Transistors||TBA||17.2 Billion?||17.2 Billion||17.2 Billion||26.8 Billion||26.8 Billion||26.8 Billion|
|TMUs/ROPs||TBA||TBA||TBA||160/64||240 / 96||288 / 128||320 / 128|
|Game Clock||TBA||TBA||TBA||2424 MHz||1815 MHz||2015 MHz||2015 MHz|
|Boost Clock||TBA||TBA||TBA||2581 MHz||2105 MHz||2250 MHz||2250 MHz|
|FP32 TFLOPs||TBA||TBA||TBA||13.21 TFLOPs||16.17 TFLOPs||20.74 TFLOPs||23.04 TFLOPs|
|Memory Size||8 GB GDDR6 + 64 MB Infinity Cache?||12 GB GDDR6 + 96 MB Infinity Cache?||6-12 GB GDDR6 + 96 MB Infinity Cache?||12 GB GDDR6 + 96 MB Infinity Cache||16 GB GDDR6 +128 MB Infinity Cache||16 GB GDDR6 +128 MB Infinity Cache||16 GB GDDR6 +128 MB Infinity Cache|
|Memory Clock||16 Gbps?||14 Gbps?||14 Gbps?||16 Gbps||16 Gbps||16 Gbps||16 Gbps|
|Bandwidth||256 GB/s?||320 GB/s||320 GB/s||384 GB/s||512 GB/s||512 GB/s||512 GB/s|
|Price||TBA||TBA||TBA||$479 US||$579 US||$649 US||$999 US|