AMD Radeon RX 6000 series: reference up to 320W, custom cards 355W

AMD's new Big Navi is a Big Power hungry GPU: Navi 21 XT reportedly has 320W TBP, custom Navi 21 XT cards will use up to 355W.

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AMD's upcoming Big Navi GPUs will be using a good chunk of power, just like their NVIDIA Ampere-based GeForce RTX 30 series competitors -- with some hot new numbers from Igor's Lab.

AMD Radeon RX 6000 series: reference up to 320W, custom cards 355W 04

The power numbers on Big Navi are early, but we're being told to expect the highest-end Navi 21 XT will have a TBP (Total Board Power) of 320W, while the Navi 21 XT GPU will use 235W on its own. But then we have custom Navi 21 XT-based Radeon RX 6000 series graphics cards will use up to 355W, while the GPU itself will use up to 270W.

Now don't compare these directly against the GeForce RTX 30 series cards just yet, as AMD is using TBP and not TGP like NVIDIA does. AMD is using the same 320W here with the Navi 21 XT-powered (and what should be the) Radeon RX 6900 XT, as the GeForce RTX 3080 -- while the custom cards will use a bit more power, just like custom RTX 3080s.

AMD Radeon RX 6000 series: reference up to 320W, custom cards 355W 01
AMD Radeon RX 6000 series: reference up to 320W, custom cards 355W 02
AMD Radeon RX 6000 series: reference up to 320W, custom cards 355W 03

At this point we're expecting the Radeon RX 6900 XT graphics card to see the GPU clocks hitting up to 2.4GHz, while custom cards will clock higher than that. This will be interesting to see, as there's a 2055-2100MHz hard ceiling on the Ampere GPUs.

We should also see the Navi 21 XL will use less power at a GPU level with around 203W, while the TBP is still high at 290W. This is much higher than the 220W on the GeForce RTX 3070, but if AMD has more RAM (16GB GDDR6) and lots of cards at launch, it will still be a big hit.

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NEWS SOURCES:igorslab.de, wccftech.com

Anthony joined the TweakTown team in 2010 and has since reviewed 100s of graphics cards. Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering and has recently taken a keen interest in artificial intelligence (AI) hardware.

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