7075 aluminum and gallium arsenide belong to fundamentally different material chemistries. 7075 aluminum is a metal, while gallium arsenide is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 10 material properties with values for both materials. Properties with values for just one material (24, in this case) are not shown.
For each property being compared, the top bar is 7075 aluminum and the bottom bar is gallium arsenide.