How do you translate compressor displacement ??
Is displacement equivalent to cooling power or engine load ?? By engine load, I meant does the number of displacement translate how heavy it is on the engine ??

For example:

Denso TV12c = 120cc displacement
Denso 10s11c = 110cc displacement
Sanden TRS090 = 85cc displacement

Does these mean TV12c has more cooling power than the 2 compressors but more heavy on the engine ??
Or they all have the same cooling capacity but TRS090 is the lightest on the engine because of smaller displacement ??