It's not a Honeywell PTM7950. But it's also a very good PTM. I used it to reduce the Hotspot temperature on my RTX 4080 from over 100 °C to just under 80 °C in the FurMark benchmark. I would buy the Thermal Grizzly again anytime. It's not easy to use, you have to be careful and patient. I bought 2 so I had one in reserve.

I think yes. It behaves and looks identical.

I am very satisfied with the product, super heat transfer. Unfortunately, I can't say whether it's a rebranding. I put it in the fridge before installation and then simply put it on the CPU, water cooling on top and that was it. It was very easy.