Question

It is predicted that with Nanotube transistors, a 11% reduction in the power dissipation can be achieved overall in a 3-year period. A contemporary computer chip, in 2020, dissipates 50 Watts on an area of one-centimeter square. If the contemporary transistor elements are replaced with nanotube transistors, estimate the power that will be needed for one-centimeter square Si chip in 2026, assuming the Moore’s law trend continues.

Answer 1

Given ,

Power dissipated in 2020 = 50 watts

Using Moore's law , Power of a computer doubles after every 18 months.

After 18 months from 2020,Power dissipated = 50*2= 100 watts

After further 18 months i.e in 2023 ,power dissipated = 100*2 = 200 watts

Reduction due to nanotubes = 200 - 11% of 200

=178 watts

After 18 months ,power dissipated = 178*2= 356 watts.

Another 18 months ,Now 2026 - Power dissipated =356*2= 712 watts

Reduction due to nanotubes = 712 - 11% of 712

= 633.68 watts