Not bad, but my MacBook Pro 13-Inch Late 2016 scores 154870 with my external Vega 64 GPU and the whole system was under $1500... I guess if you need to render whilst on a train it's ideal though.
It better be considering these aren't Vega 64 GPGPUs.
Your Vega 64 has 64 ROPs or 64 Compute Units in GeekBench parlance, versus the 20 ROPs in Vega 20.
If they were the die shrunk 7nm Vega 64 Instinct's you'd be really irritated how much it craps all over your score.