#dark-silicon
3 articles
01
·Scaling & Power·FREE·8 min read
Dark Silicon — You Can Place the Transistors, You Just Can't Light Them All
The number of transistors you can put on a chip keeps rising, but the fraction you can switch on at the same time keeps falling. That gap is dark silicon. We derive it from one line about power density, check the numbers against the 2011 ISCA paper that made the term quantitative (21% of a fixed-size chip off at 22 nm, more than 50% at 8 nm), and follow the argument to why specialised circuits won.
02
·Device Physics·★ MEMBER·10 min read
Reading Chip Design as a Power Budget — The Physics of Leakage and Heat
A modern chip is limited not by what fits, but by how much of it can be lit at once. This piece reads that limit as a household budget: dynamic power versus leakage, the positive feedback that makes leakage swell with temperature, the thermal resistance that converts watts into degrees, and the three — and only three — ways a designer can spend the watts.
03
·Scaling & Power·★ MEMBER·9 min read
The Physics of Power — Why Lowering Voltage Pays So Much
Derive what one switching event costs, then read the dynamic power equation to see why voltage alone enters squared. From there: Dennard scaling and its end, the 60 mV/decade thermodynamic floor, dark silicon, and the resulting turn toward fixed-function circuits and low precision — ending with the arithmetic of what inference costs to run.