Please note that this post is tagged as a rumor.
AMD Navi 3X GPU with even more cores than Navi 31
AMD hardware leaker Greymon55 claims that AMD is working on a new variant of Navi3X GPU.
While Navi 31 was initially rumored to feature two GCD (Graphics Compute Dies) and up to 16384 Stream Processors, those specs have now been updated to single GCD and 12288 cores. However, according to Greymon55 the 16384SP configuration may not be completely off the table just yet.
It is said that AMD is working on another (fourth) Navi 3X GPU with exactly this number of cores. This processor would therefore have more cores than Navi 31, and it would launch in 2023. No other details are available at this moment.
2023
Specifications to be determined. https://t.co/lvt9SxBPLG— Greymon55 (@greymon55) June 21, 2022
According to RedGamingTech, AMD could be developing a Radeon Pro (workstation) graphics card with dual GCD configuration, which might explain where this fourth Navi 3X GPU could find its use. The dual GCD configurations are now expected to debut with Navi 4X (RDNA4) architecture, rather than Navi 3X, the YouTuber points out.
On paper, this rumored RDNA3 GPU would appear to be a doubled configuration of Navi 32 GPU, which is expected to feature 8192 Stream Processors. Interestingly, this GPU was also rumored to launch next year.
| RUMORED Specs of AMD RDNA3 GPUs | ||||
|---|---|---|---|---|
| VideoCardz.com | ||||
| Fabrication Node | TBC | TSMC 5nm + 6nm | TSMC 5nm + 6nm | TSMC 6nm |
| Architecture | AMD RDNA3 | AMD RDNA3 | AMD RDNA3 | AMD RDNA3 |
| GPU Package | Multi-Chip-Module (MCM) | Multi-Chip-Module (MCM) | Multi-Chip-Module (MCM) | Monolithic |
| Configuration | 2x GCD + (?) MCD | 1x GCD + 6x MCD | 1x GCD + 4x MCD | TBC |
| Shader Engines | 8 | 6 | 4 | 2 |
| Shader Arrays | 16 | 12 | 8 | 4 |
| RDNA Workgroups (WGP) | 64 | 48 | 32 | 16 |
| Compute Units | 128 | 96 | 64 | 32 |
| Stream Processors | 16384 | 12288 | 8192 | 4096 |
| Memory & Bus | TBC | 24GB GDDR6 384-bit | 16GB GDDR6 256-bit | 8GB GDDR6 128-bit |
| Memory Bandwidth | TBC | 864 GB/s (18 Gbps) | 576 GB/s (18 Gbps) | 288 GB/s (18 Gbps) |
| Infinity Cache | TBC | 384MB | 256MB | 128MB |
| PCIe Interface | TBC | PCIe Gen5 | PCIe Gen5 | PCIe Gen5 |
| Release | 2023 | Q3 2022 | Q1 2023 | Q4 2022 |
| Rumored SKU | Radeon PRO | Radeon RX 7900XT | Radeon RX 7700XT | Radeon RX 7600XT |
| All information based on rumors. (Updated: June 21) | ||||
Source: @greymon55
