I got B70 few days ago. Running on CachyOS. 9070XT on PCIe x16 and B70 on the x4.
ROCm nightly was pretty easy to setup and get up running. The 9070XT has been a decent card for my use cases.
But the SYCL ecosystem versions. Absolutely horrendous and everything is hundred commits behind. Vulkan is probably the only way forward with this card.
This is very interesting. I've only heard bad things about B70's performance with Vulkan, for example this Reddit link mentioning a Phoronix review: https://www.reddit.com/r/LocalLLaMA/comments/1sgdt7t/comment...