Given how much Intel struggled even though they had been working with GPUs for decades, I'm actually impressed with how fast and competent China's attempts have been so far. Though I have to say, from the article:

The leaked specifications further muddied the waters, showing the device operating with only 32 Compute Units, a bafflingly low 300 MHz clock speed, and a virtually unusable 256 MB of video memory. We'll likely see more benchmarks as the GPU makes its way to the hands of customers.

If none of the specs match what they're supposed to be, and are weirdly out of date, are they sure this is the same GPU? It could very well be an early prototype being tested for stability. There are some engineering sample CPUs that run at 1/100th the intended speed of the final product, for instance.