My new laptop has a clock speed that is $15\%$ higher than my old laptop. I run the same

five binaries on both machines. Each binary runs for roughly the same number of cycles

on each machine. The IPCs of the binaries are listed in the table below. State a single

number that is representative of the performance improvement provided by my new

laptop.

Program P Q R S T

IPCs on old laptop $0\mathrm{.}30\mathrm{.}90\mathrm{.}91\mathrm{.}31\mathrm{.}5$

IPCs on new laptop $0\mathrm{.}40\mathrm{.}81\mathrm{.}01\mathrm{.}21\mathrm{.}4$