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Captain_Yuri said:

Overall my thoughts is that RDNA 3 was an experiment to try and make their GPU into another Ryzen but that didn't quite pan out the way they were hoping. We will see the implications of this during the reviews but while the die size is 306mm, the full die including MCDs is 533mm. 4080 is 379mm while 4090 is 608mm. If the 7900XTX ends up performing closer to 4080, then it's a failure but if it performs similar to 4090, then it's a success.

It's not quite comparable since the memory controllers have a much lower transistor density. If the die was monolithic on 5nm, it'd be like ~460 mm2.

Regardless... I'm surprised with the poor scaling in this gen relative to the number of transistors on both sides. It was always more or less linear, even across architectures, but now it's scaling to its square root (even the 4090, with a small deviation, suggesting it's only being bottlenecked a little). Is there some distinct sort of logic gate on 5nm that is being counted as a "transistor" in press slides, like the multiple fin configurations on 3 nm? It can't be just memory cells given the density of the main Navi 31 chip...