TSMC 7nm is 91MTr/mm2 and 10nm is 53MTr/mm2. That's a 1.72x increase in density while SiFive is claiming a 2x density advantage which still puts it pretty far ahead if the claim is accurate and that's without discussing the 30% IPC advantage (though final clockspeed equivalence from their claims would still put it 35% slower than the S845 at 2.8GHz). The real question is about how much more dense could A75 be if they lowered target clockspeeds.
Dylan's complaint about comparing to the S845 is mystifying ignorance as he should know better.
What other A75 SoCs are there? Exynos used it for their mid cores, but the SoC sucked. MediaTek had the Helio P65, but it was announced in late 2019 which was basically 2 years after S845 was announced at the end of 2017. There were some other smaller suppliers from China, but I have no idea who they are. S850 existed, but as I recall, it was just a better binning of the S845 announced months after the original.
Dylan's complaint about comparing to the S845 is mystifying ignorance as he should know better.
What other A75 SoCs are there? Exynos used it for their mid cores, but the SoC sucked. MediaTek had the Helio P65, but it was announced in late 2019 which was basically 2 years after S845 was announced at the end of 2017. There were some other smaller suppliers from China, but I have no idea who they are. S850 existed, but as I recall, it was just a better binning of the S845 announced months after the original.
S845 is the ONLY A75 design worth comparing.