AMD MI210 64GB vs DCU K100 64GB

On the Chinese eBay there is a many DCU K100 64 GB GPU available for a very attractive price, between 6000 RMB and 19 000 (air or water cooled versions, new or second hands), and 15 000 to 20 000 for the AMD MI210 (4000-6000 RMB for the PCIE bridge).

There is very little informations available online and I was just wondering if anyone had the chance to play with one of these ?

Specs are :
- Memory bandwidth : 900-1000Gb/s depending of the model
- 64Gb HBM2
- Architecture “close to gfx906”
- INT8 200 TOPS
- FP16 100 TFLOPS
- FP32 24.5 TFLOPS
- PCI Gen 4
- Supports ROCm, HIP

There is also some AMD Instinct MI210 64Gb available around the same price (half a MI250) on PCIEx easy to mount into a normal PC, would that be a better option ? (Memory bandwidth is 1.64TB/s)
Also no many people talking about that around here.

I got a V100 32 GB in the past from the same platform and it worked great, I’m going to China next week so I could just bring back the hardware with me.

**EDIT : Price updated to reflect the higher bound of 19 000 RMB for the DCU K100 and added the price range for MI210. My wife is Chinese, she will be talking with the sellers and filter the scams/weirdos.