Code name Beige Goby is a bit of a mystery to me, I admit. While u Sienna Cichlid (Navi 21), Navy Flounder (Ships 22) a Dimgrey cavefish (Navi 23) is a widespread naming of fish in English, Beige Goby does not correspond to any particular species. “Goby” is generally a gnome, but the adjective “Beige” has no species in its name. We can speculate about the link to the game Cold Fish, the fourth part of which contained the character of Goby, who it was really beige.
| Navi 21 | Navi 22 | Navi 23 | Navi 24 | |
|---|---|---|---|---|
| transistors | 26.8 billion | 17.2 billion | ~ 12 billion | 6-7 billion |
| area | 519,8 mm² | 336 mm² |
236 mm² |
~110 mm² |
| stream-proc. | 5120 | 2560 | 2048 | 1024 |
| ROP | 128 | 64 | 32 | 16? |
| bus | 256bit | 192bit (160bit) |
128bit |
64bit |
| Infinity Cache | 128 MB | 96 MB |
64 MB |
16 MB |
| RAM | 16 GB | 12 GB (10 GB) |
8 GB | 4 GB? |
| TDP | 250-300 W | ≤230 W desk. 90-146W mob. |
≤125 W desk. 65-90W mob. |
≤75 W d. 40-65 W m. |
| bus | PCIe 4.0 ×16 | PCIe 4.0 ×16 | PCIe 4.0 ×8 | PCIe 4.0 ×8 |
| edition | Q4 2020 | Q1 2021 | Q2 2021 | 2021 |
Back from ichthyology to IT. Navi 24 will be equipped with 1024 stream-processors. Except that it’s a simple double compared to the integrated graphics of the APU Cezanne / Ryzen 5000U / H / G (512), we are also moving by about 1.5 architectural generations. In addition, a stand-alone chip can afford slightly higher beats than an integrated core and has its own bus (unlike APUs that share it with a processor). 64bit bus in combination with GDDR6 memories also gives higher data throughput (112-128 GB / s) than dual-channel RAM in the form of DDR-3200 (51.2 GB / s), so even if AMD reached for a generation older GDDR5 (56- 64 GB / s), the physical throughput of the bus will still be higher than that of the integrated one Vega, despite that Navi 24 he has it for himself. Finally, there is another (albeit 16 MB) Infinity Cache.
Taking all this information into account, I think it makes quite sense to expect about 2.5-3 times higher performance compared to APU graphics Cezanne. Such a product can be interesting both in the mobile segment, where it can offer twice the performance of the current Intel Xe DG1 (differences in drivers and resolution support are a chapter in itself) and can also be interesting in the desktop, as it could fit within the 75W limit for PCIe slot power supply. In the context of desktop graphics, it occurs to me that such a product could, despite 4 × narrower memory bus, approach 256bit with gaming performance Polaris as Radeon RX 470/480/570. How exactly it will perform will depend on the specific clock frequencies and the type of memory installed (GDDR5, GDDR6). Navi 24 can be expected in the 3rd quarter.
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