Any XPS 13 will be running a -U series low-power CPU. I would not consider any laptop high-end with regard to compute, unless it is using a -H series part, at l

Any XPS 13 will be running a -U series low-power CPU. I would not consider any laptop high-end with regard to compute, unless it is using a -H series part, at least. -U series (somehow, magically the same designation between AMD and Intel) will typically run ~15W, though this is configurable by the OEM (sometimes in BIOS?). -H series (also, magically the same designation) will typically run ~45W, and this is also configurable by the OEM. The increased power envelope of -H series typically allows higher base clocks. Turbo can sometimes be close between a 15W and a 45W chip, but a -H series will be able to maintain higher frequencies for longer, thanks to a superior thermal solution.