Dennard Scaling is a principle that states as transistors get smaller, their power density stays constant, allowing for faster clock speeds without increasing power consumption. This scaling law has faced challenges due to physical limitations, leading to the end of the exponential growth in computing performance known as Moore's Law.

Dennard Scaling

transistors get smaller

Power density is a measure of the amount of power (time rate of energy transfer) in a given area or volume, crucial for evaluating the efficiency and performance of energy systems such as batteries, fuel cells, and power plants. It is a critical parameter in designing and optimizing devices where space and weight constraints are significant, impacting everything from consumer electronics to large-scale energy infrastructure.

power density

clock speeds

Power consumption refers to the amount of energy used by an electrical device or system over time, often measured in watts or kilowatt-hours. Understanding power consumption is crucial for optimizing energy efficiency, reducing costs, and minimizing environmental impact.

power consumption

scaling law

physical limitations

Exponential growth describes a process where the rate of increase is proportional to the current value, leading to the quantity growing at an increasingly rapid rate. This type of growth is characterized by a constant doubling time and is often observed in populations, investments, and certain natural phenomena.

exponential growth

computing performance

Moore's Law is the observation that the number of transistors on a microchip doubles approximately every two years, leading to a corresponding increase in computing power and decrease in relative cost. This principle has driven exponential growth in technology, although physical and economic limitations are challenging its sustainability.

Relevant Degrees

Your Lessons