Which has a more powerful CPU performance IN REALITY, considering the manufacture's configuration and heat throttling. HP ZBook 15 G5 Intel Core i5-8300H WITHOUT discrete graphics. Thinkpad T580 Intel Core i7-8650U WITHOUT discrete graphics. The processor comparision is here: http://bit.ly/2nsBLMV, which indicates their scores are kind of close. ------------ I need a powerful CPU and don't need the graphics to withdraw the battery too quickly. Nowadays it's hard to find powerful laptop without a discrete graphics. Finally it narraws down to two models.