I thought parts felt like AI and parts felt like a British human writing it.

AI(?):

But here is the thing: this is a Volta GPU with 16GB of HBM2 memory, 5120 CUDA cores, and I picked it up for about £150 on eBay. The compute is still real. The VRAM is still real. And the memory bandwidth is where it gets genuinely surprising.

Human (?):

So I shoved some jumper wires into the connector and jammed the other ends into a spare fan header (turn your volume up)

I suspect he's used some AI polishing tool to turn his draft into a publishable post.