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AMD's high-end Navi GPU details: twice as fast as Radeon RX 5700 XT?!

AMD's next-gen Navi 21 GPU: massive 505mm2 die, 12-16GB of GDDR6 -- and SUPER fast!

By Anthony Garreffa on Dec 30, 2019 10:22 pm CST - 1 min, 41 secs reading time

AMD has been cooking up a kick-ass successor to Navi with a 2020 flagship GPU that is being referred to as Navi 21, with the second-generation RDNA family coming on the new 7nm+ process node.

AMD's high-end Navi GPU details: twice as fast as Radeon RX 5700 XT?! 01 |

Navi 21 will be a large GPU with new rumors pointing to it packing somewhere between 15-16 billion transistors, which makes it bigger than Vega 20 (13.2 billion) and Navi 10 (10.3 billion). But the bigger news here is that AMD's new flagship Navi 20-based graphics card would feature 12-16GB of GDDR6 memory on a much wider memory bus.

The new rumors have AMD possibly using a wider 384-bit or 512-bit memory interface, something that would enable much more memory bandwidth with GDDR6 memory. Previous rumors suggested AMD would tap higher-end HBM2E memory, packing between 16-32GB of framebuffer.

The new Navi 21 GPU will have hardware-based ray tracing, exactly the same as the Turing GPU from NVIDIA. We should see something in the first few months of 2020, but I would guess we'll see a mix of GDDR6 (on consumer cards) and HBM2/E on the server/datacenter solutions.

GPU Die Size

  • Navi 10 - 251mm2
  • Vega 20 - 331mm2
  • Navi 21 - 505mm2

GPU Transistors

  • Navi 10 - 10.3 billion transistors
  • Vega 20 - 13.2 billion transistors
  • Navi 21 - 15-16 billion transistors
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Anthony Garreffa

ABOUT THE AUTHOR - Anthony Garreffa

Anthony is a long time PC enthusiast with a passion of hate for games to be built around consoles. With 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 high-end, custom-built PCs. His addiction to GPU technology is unwavering, and with next-gen NVIDIA GPUs about to launch alongside 4K 144Hz HDR G-Sync gaming monitors and BFGDs (65-inch 4K 120Hz HDR G-Sync TVs) there has never been a time to be more excited about technology.


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