Is this another proof that GeForce GTX 11 series are real?

NVIDIA GeForce GTX 1180

The software recognizes the GPU as GeForce RTX 2080. This means that GTX 1180 is likely based on Turing architecture. That said, the rumor about GTX 11 series utilizing Pascal Refresh might not be true after all.

The GeForce GTX 1180 is quite possibly RTX 2080 without ray tracing cores.

There is no direct comparison available (the benchmark was run on Linux), but if we compare it to RTX 2080 on Windows, the results are almost identical.

Source: GFXBench via HardwareLuxx