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AMD's next-gen RDNA 3 GPU: up to 2.5x faster than GeForce RTX 3080 Ti

AMD will have multiple Navi 3X GPUs based on its RDNA 3 architecture, with the Multi-Compute Die (MCD) GPU with Navi 31 soon.

@anthony256
Published Thu, Jul 22 2021 7:41 PM CDT   |   Updated Sun, Aug 22 2021 4:45 PM CDT

AMD's next-gen RDNA 3 architecture is still a long way away, it'll be interesting to see how AMD deploys its next-gen GPU architecture as it will be offered in MCD format -- or Multi-Compute Die.

MCD is similar to the MCM (Multi-Chip Module) design that NVIDIA will use with its next-gen Hopper GPU, and the chiplet-based technology AMD uses on its various Zen-based CPUs. The latest info on the next-gen RDNA 3 architecture is that Navi 31 will be an MCD (Multi-Compute Die) design and taping out "soon" according to leaker @KittyYYuko, with Navi 32 possibly taping out in Q2 2022.

  • AMD Navi 31: Multi-Compute Die (MCD) tape out in Q4 2021
  • AMD Navi 32: Multi-Compute Die (MCD) tape out in Q4 2021
  • AMD Navi 33: Monolithic GPU (like normal) tape out in Q1 2022

AMD will be making multiple Navi 3X GPUs going forward, with Navi 31, Navi 32, and Navi 33 all teased. As for performance, we should expect the flagship RDNA 3 GPU in monolithic form -- which should take form with a Navi 33-based GPU -- to be somewhere in the 100%+ increase over the Radeon RX 6900 XT range.

AMD's next-gen RDNA 3 GPU: up to 2.5x faster than GeForce RTX 3080 Ti 07 | TweakTown.com

Infinity Cache is expected to be greatly improved, with AMD's next-gen Navi 31-based Radeon GPU packing up to 512MB of Infinity Cache... this is a 4x increase over the 128MB of Infinity Cache on the Radeon RX 6800 XT and Radeon RX 6900 XT graphics cards under the RDNA 2 GPU architecture.

But now, let's talk about efficiency.

In some other tweets, new leaker on the scene @Greymon55 tweeted out Ada Lovelace followed by three fire emoticons, while RDNA3 had two fire emoticons next to it. @Rule110 replied, saying: "I expect GPU chiplets to be crazy innefficient. I mean Ponte Vecchio is basically a meme. However like HBM on Vega maybe it's also vital for it to use a massive L3 to even function well. I have no idea what Lovelace is expected to bring up. As usual with NVIDIA".

In reply to that, @Greymon55 said: "No, GPU chiplets is very efficient and does not have much impact on performance and power consumption".

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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.

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