[lukevp]

That's fascinating. I know that AMD has been touting HBM as a faster memory subsystem for their GPUs, is that the same as HMB where it's stacked? Or are they just calling it something similar?

[rrss]

It's the same thing. High end GPUs have been using HBM2 for a few years, A64fx uses HBM2 for CPU memory.

[floatboth]

"HMB" is a typo, it is the same HBM.

And yeah.. honestly I'm surprised AMD didn't do the HBM-CPU thing first. An HBM2-powered EPYC would've been an amazing product.