Today during their RDNA 3 livestream, AMD officially announced the Radeon RX 7900 XTX and Radeon RX 7900 XT. Both of these cards will be based off the flagship 5nm Navi 31 RDNA 3 GPU. This GPU features 58 billion transistors and will offer up to 61 TFLOPS of single-precision compute performance. This GPU also has a chiplet design with the compute node being 5nm and the six chiplets being fabricated on TSMC’s 6nm process node and measure 37mm2 each. The GPU has 5.3 TB/s chiplet interconnect.
AMD Radeon RX 7900 XTX
The flagship graphics card will be the Radeon RX 7900 XTX. This card features the full Navi 31 GPU with 12288 Stream Processors, 96 AMD RDNA 3 CUs, 24 GB of 20 Mbps GDDR6 across a 384-bit memory interface, and a typical board power of 355W. The card has a base clock of 1.9 GHz, game clock of 2.3 GHz, and boost up to 2.5 GHz. The card will retail for $999 and be available December 13, 2022.
With the 355W board power the card will only need two 8-pin PCI-Express power connections. Here are some shots of the card.
When it comes to performance AMD is stating that the Radeon RX 7900 XTX is up to 1.7x faster than the Radeon RX 6950XT at 4K resolution. If it is indeed 1.7x faster that would be in somewhat in line with NVIDIA RTX 4090 performance, but AMD did not provide any performance graphs against NVIDIA GPUs. They did provide the below graph which shows performance gains compared to the Radeon RX 6950XT.
AMD Radeon RX 7900 XT
The second card is the Radeon RX 7900 XT. The card will feature a cut-down version of the Navi 31 GPU with 10752 Stream Processors, 84 AMD RDNA 3 CUs, 20 GB of 20 Mbps GDDR6 across a 320-bit memory interface, and typical board power of 300W. The card has a base clock of 1.5 GHz, game clock of 2.0 GHz, and boost up to 2.4 GHz. This card is only going to be $100 cheaper than the Radeon RX 7900 XTX at $899 and will be available December 13th as well.
Based on its configuration we can guess the performance would be about 85% the performance of the RX 7900 XTX. Again no real performance figures against competing graphics cards.
These cards also are the first Radeon cards to support DisplayPort 2.1 which offers up to 8K 165Hz support or 4K at 480 Hz. AMD has said that DisplayPort 2.1 displays will be available starting in 2023.
You can watch AMD’s full presentation below…