Acer has upgraded its Swift 3 offering to feature the new NVIDIA GeForce MX250 GPU. The rest of the specifications remain more or less the same. The MX250 is, for all intents and purposes, a re-badged version of the MX150 with slightly higher clocks and will be available in both 10 W and 25 W TDP variants. However, it is not known which TDP variant is being used in the new Swift 3.
https://www.notebookcheck.net/Acer-now-offering-the-Swift-3-with-NVIDIA-GeForce-MX250-graphics.410602.0.html