haxxiy on 10 September 2020
| JEMC said: There's been a lot of rumors regarding the performance of Big Navi, but not a single one about yield problems. But it doesn't really have to be a very big chip. The Navi 10 chip of the 5700 series is 251 mm², double that and it would still be smaller than the Ampere chip of the 3080. Of course, it's not that simple and the added ray tracing hardware will also take more space. |
Not necessarily, since, for instance, Fiji was 596 mm2 versus 352 mm2 for the Tahiti chip with half as many CUs and an earlier iteration of the GCN architecture. There is a lot of machinery inside the chip that won't double with twice as many CUs. Looking at the new consoles, I'd expect less than 500 mm2 unless Big Navi includes some surprises that the consoles don't have (but I think the RT solution will be similar and use some form of minifloats).
