Not so long ago, Apple released an updated line of MacBook Pro laptops. One of the most significant innovations was the use of new, more powerful Intel processors of Coffee Lake generation. Nevertheless, the devices did not meet all the expectations of users because of some very annoying problems.For example, it was recently found out that the new laptops are completely unrepairable. This is caused by the fact that the processor, RAM and flash module are soldered into the main board. In addition, many of the components are mated to each other and bonded with a strong adhesive. This makes it impossible not only to replace the "iron" for a more productive, but also seriously complicates the repair. And if the first problem for many will not seem a serious inconvenience, the new finding calls into question the advisability of buying a top-end MacBook Pro. The fact is that the version of the laptop with a six-core Core-i9 8950HK processor running at 2.9-4.8 GHz has been found to have serious overheating problems. The cooling system, which is installed on the devices, simply does not cope with its direct purpose. As a result of overheating, the processor activates a protective mechanism that resets frequencies. This process is also called "trot-tling".The relevant information was shared by popular video blogger Dave Lee. According to the information he published, the processor on the 15-inch MacBook Pro is running below the base frequency of 2.9 GHz under load. The problem was discovered when using the laptop to render videos in Adobe Premiere Pro. During testing, the average frequency was only 2.2 GHz, 700 MHz below the minimum claimed frequency. To see if the problem was due to overheating, the video blogger placed the MacBook Pro in the refrigerator. After that, it only took 27 minutes instead of 39 minutes to render a video in Adobe Premiere Pro.The experiment showed that you can't hope for a performance boost when you buy a top-of-the-line MacBook Pro. It is possible that Apple will fix this problem in the future. Nevertheless, those who care about performance should pay attention to the MacBook Pro version with the Core i7-8750H processor, or last year's model.