Size
Knowing the dimensions of the thermal pad, you can evaluate how it will suit certain tasks. A thermal interface is cut out the size of a chip or with a small margin.
Thickness
Thermal pads are usually selected in
thickness according to the width of the measured gap plus 0.1 - 0.5 mm to provide the necessary pressure, taking into account the deformation of the gasket material. If the thermal rubber is smaller than the gap between the heatsink and the chip, you can use several spacers together to achieve the required thickness.
Thermal conductivity
The fundamental indicator for pasta. The parameter determines the amount of heat passing through a unit of substance during a unit of time. The higher the thermal conductivity of thermal paste, the better. For home computer processors that do not get very hot, in principle, any thermal conductivity is suitable, but for high-performance gaming stations, it is advisable to give preference to compositions with high thermal conductivity (from 5 W / mK and more).
