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Their GPUs are likely to be multichip for the first time too with NAVI 31 (while Nvidia's next gen will still be single chip and likely fall behind AMD). It als

• monocasa 5y ago
  There's a few ways to interpret that. Another interpretation could be that they are simply taping out Navi32 on two nodes, perhaps for AMD to better utilize the 5nm slots they have access to. Perhaps when Nvidia is on Samsung 10nm+++, then the large consumer AMD GPUs get a node advantage already being at TSMC 7nm+++, and so they're only using 5nm slots for places like integrated GPUs and data center parts that care about perf/watt. But your interpretation is equally valid with the information we have AFAICT.
• ceeplusplus 5y ago
  I've yet to see any sort of research out of AMD on MCM mitigations for things like cache coherency and NUMA. Nvidia on the other hand has published papers as far back as 2017 on the subject. On top of that even the M1 Ultra has some rough scaling spots in certain workloads and Apple is by far ahead of everyone else on the chiplet curve (if you don't believe me, try testing lock-free atomic load/store latency across CCX's in Zen3). Also AMD claimed the MI250X is "multichip" but it presents itself as 2 GPUs to the OS and the interconnect is worse than NVLink.
• thissiteb1lows 5y ago