PowerColor lists AMD’s Radeon RX 6900 XT LC graphics card on their website

PowerColor lists AMD's Radeon RX 6900 XT LC graphics card on their website

PowerColor lists AMD’s Radeon RX 6900 XT LC graphics card on their website

PowerColor has listed AMD’s Radeon RX RX 6900 XT LC on their website, confirming the specification of AMD’s leaked Radeon flagship. This new graphics card model is an AMD reference design that features a 120mm liquid cooling solution and features higher clock speeds than AMD’s existing RX 6900 XT air-cooled designs. 

AMD has a long history of releasing liquid cooled graphics cards, such as their RX Fury X, RX Vega 64 LC, and RX 295×2. The RX 6900 XT LC appears to be AMD’s continuation of this high-end liquid cooling trend, offering gamers higher core clock speeds and memory speeds than the company’s existing air-cooled RX 6900 XT reference model. 

According to PowerColor’s listing, AMD’s Radeon RX 6900 XT LC graphics card features a “game clock” of 2250 MHz and 18Gbps GDDR6 memory. These changes indicate that AMD’s RX 6900 XT LC features a game clock speed boost of around 11.7% and a VRAM bandwidth increase of 11.25% when compared to the company’s reference air-cooled RX 6900 XT.  

Samsung confirmed in 2018 that they planned to produce 18Gbps GDDR6 memory modules, memory chips that are almost fast enough to enter GDDR6X performance levels. Using these modules, AMD can deliver more memory bandwidth on their flagship RDNA 2 silicon, leading to a significant performance boost in some memory-limited workloads.

Below are the specifications of AMD’s RX 6900 XT LC, as listed by PowerColor. Below we have also included leaked imagery of a Sapphire RX 6900 XT LC graphics card, which appears to use an AMD/Radeon heatsink design. 

  Radeon
RX 6700 XT
(Reference)
Radeon
RX 6800
(Reference)
Radeon
RX 6800 XT
(Reference)

Radeon
RX 6900 XT
(Reference)

Radeon
RX 6900 XT LC
(PowerColor)

Compute Units 40 60 72 80 80
Shaders 2560 3840 4608 5120 5120
Game Frequency 2424 MHz 1815 MHz 2015 MHz 2015 MHz 2250 MHz
Boost Frequency 2581 MHz 2105 MHz 2250 MHz 2250 MHz 2435 MHz
VRAM Size 12GB 16GB 16GB 16GB 16GB
VRAM Speed 16Gbps 16Gbps 16 Gbps 16 Gbps 18 Gbps
Infinity Cache 96MB 128MB 128MB 128MB 128MB
Power Inputs
8-pin &
6-pin
2×8-pin 2×8-pin 2×8-pin 
2×8-pin

Unreleased Sapphire RX 6900 XT LC with 18 Gbps GDDR6 appears at retail(Image from older Sapphire GPU listing)  

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