(March 25, 2018 update: The ThinkPad T480s has been discovered shipping with the slower GeForce MX150 Max-Q GPU. This system has been added to our 3DMark benchmark list below.)

(March 28, 2018 update: Xiaomi uses the slower MX150 GPU for the Mi Notebook Air and the Mi Notebook Pro, but the latter is equipped with a higher clocked version).

TL;DR: We've discovered two distinct versions of the GeForce MX150 with wide performance differences and power demands. The second version is notably slower and less demanding than the "standard" MX150 with underclocked clock rates, Boost rates, and VRAM not unlike a Max-Q GPU. This slower "MX150 Max-Q" can only be found on 13-inch Ultrabooks so far. We recommend being cautious if purchasing a notebook with the MX150 GPU as neither Nvidia nor the manufacturers have been explicitly advertising the slower GPU version.

Please see our dedicated page on the GeForce MX150 for more technical information on the two versions of the GPU.