The benchmark entry mentions that the GTX 2080 Ti card is part of a "special supply for GSS", suggesting that this could be an early test sample sent to GRUS Spars Solver testers that assess the machine learning capabilities. However, the denomination is not really in line with the GTX 11xx moniker that was confirmed by a Lenovo leak, so the information could be fake.
https://www.notebookcheck.net/Nvidia-GTX-2080-Ti-GPU-test-sample-pops-up-in-Ashes-of-Sigularity-benchmark.315840.0.html