A bit surprised that they're using HBM2e, which is what Nvidia A100 (80GB) used back in 2020. But Intel is using 8 stacks here, so Gaudi 3 achieves comparable total bandwidth (3.7TB/s) to H100 (3.4TB/s) which uses 5 stacks of HBM3. Hopefully the older HBM has better supply - HBM3 is hard to get right now!
The Gaudi 3 multi-chip package also looks interesting. I see 2 central compute dies, 8 HBM die stacks, and then 6 small dies interleaved between the HBM stacks - curious to know whether those are also functional, or just structural elements for mechanical support.
The Gaudi 3 multi-chip package also looks interesting. I see 2 central compute dies, 8 HBM die stacks, and then 6 small dies interleaved between the HBM stacks - curious to know whether those are also functional, or just structural elements for mechanical support.