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Home / Technology / The AMD Navi 21 XT “Big Navi” graphics processor for the Radeon RX 6900 XT reportedly has a 2.4 GHz clock, 16 GB of GDDR6 VRAM and 255 W TDP

The AMD Navi 21 XT “Big Navi” graphics processor for the Radeon RX 6900 XT reportedly has a 2.4 GHz clock, 16 GB of GDDR6 VRAM and 255 W TDP



The specifications of the AMD Navi 21 XT “Big Navi” graphics processor for the Radeon RX 6900 XT graphics card were announced by Patrick Schur, who was very reliable about his information. According to spec reports, the AMD Radeon RX 6900 XT seems to be a beast graphics card with a crazy watch.

AMD Radeon RX 6900 XT with GPU “Big Navi” Navi 21 XT, which presents a crazy gaming watch 2.4 GHz, 16 GB GDDR6 VRAM and 255 W TGP

In his tweet, Patrick states that the AMD Navi 21 XT graphics processor, which is supposedly the “Big Navi” graphics processor that all gamers have been waiting for, will be a crazy chip. According to previous reports, the 21 XT GPU will be introduced on the Radeon RX 6900 XT graphics card, but there are also reports that there is a faster version of the XTX that would be even faster.

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The Navi 21 XT GPU will reportedly be the power of the chip from game clock is about 2.4 GHz what are the highest clock frequencies we will see on the consumer graphics of the desktop class. This also suggests that we can expect even higher gain frequencies, given that gaming and boost clocks are separate, as the gaming clock is the average clock speed that the GPU can support in games, while the boost frequency is the peak frequency. which can get the GPU.

It is also noted that the graphics processor has a TGP (total graphics power) of 255 watts. This does not mean all the power of the board, namely the GPU. For comparison, the GeForce RTX 3080 has a TDP of 320 watts, and the GeForce RTX 3070 has a TDP of 220 watts.

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The graphics card is based on the Navi 21 XT graphics processor, which is reportedly a Radeon RX 6900 XT, has 16 GB of GDDR6 memory this is also what we have observed in various previous sources. In terms of comparative measurements, the performance seems to be really close to the NVIDIA GeForce RTX 3080 graphics card, which is very impressive for AMD, and if they can estimate the Big Navi graphics card at about $ 499- $ 599 in the US, then they will have a killer 4K solution.

Rogame has already specified at least four SKUs for the Navi 21 GPU (RDNA 2), but we knew nothing but PCI IDs. There is now much speculation about the exact specifications and configurations of each SKU in terms of number of cores, texture units and ROP, as we now know that the GPU consists of 5,120 stream processors packed into 80 CUs.

According to Rogame, the Navi 21 GPU currently has the following SKUs:

  • Navi 21 XTX (0x731F: D0)
  • Navi 21 XT (0x731F: D1)
  • Navi 21 XL (0x731F: D3)
  • Navi 21 XLE (0x731F: DF)

Comparison of AMD’s flagship GPUs with RTG:

Video card AMD Radeon R9 Fury X AMD Radeon RX Vega 64 AMD Radeon VII AMD Radeon RX 5700 XT AMD Radeon RX 6900 XT
GPU code name Fiji XT Vega 10 XT Vega 20 XT Ships 10 XT Ships 21 XT?
GPU process 28 nm 14 nm 7 nm 7 nm 7 nm +?
Transistors 8.9 billion 12.5 billion 13.3 billion 10.3 billion TBA
The size of the matrix 596mm2 495mm2 331mm2 251mm2 ~ 500-540mm2
Calculate the units 64 64 60 40 80?
Streaming processors 4096 4096 3840 2560 5120?
TMU / ROP 256/64 256/64 240/64 160/64 TBA
Base clock 1050 MHz 1247 MHz 1400 MHz 1605 MHz TBA
Raising the clock 1050 MHz 1546 MHz 1750 MHz 1905 MHz TBA
The amount of memory 4 GB HBM1 8 GB HBM2 16 GB HBM2 8 GB GDDR6 16 GB GDDR6?
Memory bus 4096-bit 2048-bit 4096-bit 256-bit 256-bit?
Capacity 512 GB / s 484 GB / s 1024 GB / s 448 GB / s 512 GB / s?
TDP 275 W. 295 W. 295 W. 225 W. 255 W?
Price $ 649 $ 499 $ 699 $ 399 TBA
Launching 2015 2017 2019 2019 2020

AMD Radeon RX 6900 series with cooling with three sockets:

As for the designs themselves, the flagship cooling design of the Radeon RX 6000 looks stunning thanks to the red and black design. The card is equipped with a triple axial process fan on the casing and has a large aluminum heatsink that runs under it. On the side of the card there is a Radeon LED logo, and on the side there is a large cutout for fans to give off hot air. This design is very similar to the NVIDIA GeForce RTX 20 Series Founders Edition cooler. The card will have a dual 8-pin power port, and the display ports will include USB Type-C (VirtualLink), 1 HDMI connector and 2 DisplayPort connectors.

The card also has a fancy back panel along with a retaining bracket to hold the cooler in place. The Radeon RX “Big Navi” GPU looks like it will come in a standard 2-slot reference design, which is the same as the flagship NVIDIA RTX 3080, but not as huge as the triple GeForce RTX 3090 slot.

On October 28, AMD will officially unveil its Radeon RX 6000 family of graphics cards. The second half of 2020 will definitely be an interesting time for all hardware enthusiasts and major PC gamers who are looking forward to upgrading their PCs with the best hardware.

How fast do you think the Radeon RX graphics card with AMD Big Navi (RDNA 2) graphics processor will be?




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