The Surface Pro X is getting an upgrade, with Microsoft’s ultra-portable 2-in-1 promising more power, more battery life, and more color options. Joining the existing Microsoft SQ 1 chipset built in collaboration with Qualcomm comes a new, SQ 2 version, bringing more grunt to the top-end Surface Pro X configurations.

It uses Adreno 690 graphics, too, for a bump in visual performance.
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https://www.slashgear.com/surface-pro-x-upgrade-microsoft-sq-2-chip-and-longer-battery-life-01640647/