Under the hood of the SQ2, the GPU upgrade comes courtesy of the Adreno 690, compared to the Adreno 685 in the SQ1.

At this point our best guess is that the SQ2 is a version of Qualcomm's 8CX Gen 2 SoC, similar to how the SQ1 was based on the original 8CX.

We’ve reached out to the company to get clarification on the changes, but have only been told so far that the new processor is an enhanced version of the Qualcomm-built SQ1, offering more CPU and GPU performance. The big change is that Microsoft is going to be offering their new Microsoft SQ2 processor as an optional upgrade over the SQ1 found in the Surface Pro X. Today Microsoft is announcing some new updates to the Surface Pro X to make it faster, and flashier. It is not too often we see Microsoft do a mid-cycle refresh, but the Surface Pro X gets to be the exception here as well. Being the only current generation Surface product powered by an Arm-based processor, it thrusts its users directly into the world of WoA: Windows on Arm – and all of the caveats that exist there. Microsoft’s Surface Pro X seems to be a very divisive device.

Surface x pro sq2