Please note that this post is tagged as a rumor .
AMD RX 7900XT rumored to feature 4GB more memory than RX 6900XT
According to Wccftech sources, Radeon RX 7900XT RDNA3 GPU is said to feature 20GB of VRAM. This reportedly not the flagship model, though.
AMD Radeon RX 7900 series are to be announced in less than 2 weeks, which means that board partners should already have all the important information on next-gen AMD GPUs. Wccftech citing their sources confirmed today that RX 7900XT will pack 20GB of memory. This is actually not new information because Navi 31 GPU was expected to feature a 320-bit variant. However, this is the first time a specific GPU model is being mentioned with this memory capacity.
The rumored RX 7900XT would feature 20GB GDDR6 memory of unknown speed along with a 320-bit bus. If for any reason AMD would keep its RDNA2 top 18 Gbps GDDR6 speed, that would give 720 GB/s of bandwidth, 144 GB/s faster than RX 6950XT. And that’s not even including the new Infinity Cache size, which is expected to be at least 96MB on the full chip. And speaking of top SKU, it speculated that RX 7950XT is to feature 24GB of GDDR6 memory with full 384-bit memory bus. This was not confirmed by anyone yet, though.
AMD Navi 3X GPU Family, Source: @Wild_C
The RX 7900 series are believed to feature Navi 31 GPU with up to 12288 Stream Processors. This is AMD’s first consumer chiplet design for the Radeon series, featuring a large graphics and memory dies on a single package. The renders posted above are a fan-made visualizations by Wild_C based on the most recent leaks. A full Navi 3X (RDNA3) GPU specs were already posted by Angstronomics , who had a stellar track record thus far.
| Navi 31 | Navi 32 | Navi 33 |
| • gfx1100 (Plum Bonito) • Chiplet – 1x GCD + 6x MCD (0-hi or 1-hi) • 48 WGP (96 legacy CUs, 12288 ALUs) • 6 Shader Engines / 12 Shader Arrays • Infinity Cache 96MB (0-hi), 192MB (1-hi) • 384-bit GDDR6 • GCD on TSMC N5, ~308 mm² • MCD on TSMC N6, ~37.5 mm² | • gfx1101 (Wheat Nas) • Chiplet – 1x GCD + 4x MCD (0-hi) • 30 WGP (60 legacy CUs, 7680 ALUs) • 3 Shader Engines / 6 Shader Arrays • Infinity Cache 64MB (0-hi) • 256-bit GDDR6 • GCD on TSMC N5, ~200 mm² • MCD on TSMC N6, ~37.5 mm² | • gfx1102 (Hotpink Bonefish) • Monolithic • 16 WGP (32 legacy CUs, 4096 ALUs) • 2 Shader Engines / 4 Shader Arrays • Infinity Cache 32MB • 128-bit GDDR6 • TSMC N6, ~203 mm² |
Alleged final Navi 3X GPU specifications, Source: Angstronomics
Recently, power supply maker Enermax listed as many as four RX 7000 models along with estimated power consumption for each model. This information has already been removed from the website, so it is not clear if it was inaccurate or AMD simply ‘requested’ that this information should not be make public just yet.
AMD confirmed yesterday they will have a livestreamed event dedicated to RDNA3 GPUs on November 3rd. Some board partners even confirm that they ‘ready’, which probably implies that custom cards are ready as well.
| Rumored AMD Radeon RDNA Series | ||||||
|---|---|---|---|---|---|---|
| VideoCardz.com | GPU | Stream Processors | Memory | Memory Speed | TBP | MSRP |
| AMD Radeon RX 7000 Series | ||||||
| RX 7950XT | 5nm Navi 31 | 12288 | 24GB G6 384b | TBC | ~420W | TBC |
| RX 7900XT | 5nm Navi 31 | 10752 | 20GB G6 320b | TBC | ~330W | TBC |
| RX 7800XT | TBC | TBC | TBC | TBC | ~300W | TBC |
| RX 7700XT | TBC | TBC | TBC | TBC | ~200W | TBC |
| AMD Radeon RX 6000 Series | ||||||
| RX 6950 XT | 7nm Navi 21 KXTX | 5120 | 16GB G6 256b | 18 Gbps | 335W | 1099 USD |
| RX 6900 XT | 7nm Navi 21 XTX | 5120 | 16GB G6 256b | 16 Gbps | 300W | 999 USD |
| RX 6800 XT | 7nm Navi 21 XT | 4608 | 16GB G6 256b | 16 Gbps | 300W | 649 USD |
| RX 6800 | 7nm Navi 21 XL | 3840 | 16GB G6 256b | 16 Gbps | 250W | 579 USD |
| RX 6750 XT | 7nm Navi 22 XT | 2560 | 12GB G6 192b | 18 Gbps | 250W | 549 USD |
| RX 6700 XT | 7nm Navi 22 XT | 2560 | 12GB G6 192b | 16 Gbps | 230W | 479 USD |
Source: Wccftech