We have currently 3 Sketch-up pro licenses in our office, installed in this model:
CPU: E5-1620 (3.5)
RAM: 24576MB RAM
CARD: Quadro K620
It happens with heavy models even if you can orbit smoothly, that It takes a lot of time to enter into groups or run tools (5-10 seconds each action).
As we are thinking now into upgrading I would like you to give me your opinion regarding the specifications of our computers and let me know if some of the components are likely to be causing this low performance.