Re:TSMC officially begins 5 nm production
by SomeoneFromCA on Tuesday June 23, 2020 @05:47AM
(#23611767)
I know how CPU's work. Core 2 might be an extreme example, but IPCs between 10 years old Sandy Bridge and Coffee Lake differs only by 25(!) percent. So yeah, last 10 years, and especially after the Ivy Bridge, Cpu Freq almost linearly tied with the performance.
In a very loose sense.
It's clock speed * instructions per clock. But even that is misleading, as the number of instructions per clock is not a fixed quantity and hasn't been for decades now. It's also impacted by the instructions that came before and the ones predicted to come next.
> this is exactly why ancient Core Duos, made in 2007 are still perfectly usable for office applications and even lightweight development
They are suitable because these applications are not very demanding. A Core2Duo at the same clock speed of a modern processor will be much slower.
> cannot go above 5Ghz
Can, and have. But the cost-benefit of increasing clock speeds further is not favorable.