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The M1 Ultra has 800GB/s of memory bandwidth, on contrast HBM2E has 204.8 Gbps × 2 = 409.6 Gb/s
by JacobiX 3y ago
The M1 Ultra has 800GB/s of memory bandwidth, on contrast HBM2E has 204.8 Gbps × 2 = 409.6 Gb/s
- consp 3y agoIs that available to any core or just a sum-all-up and has latency penalties when going around?
- hypercube33 3y agodepends on NUMA node config so I believe this is combined on the whole chip if all cores are working on threads with their local 16GB HBM, theoretically.
- Brian-Puccio 3y agoSo 6,400 Gb/s compared to 409.6 Gb/s once you convert units?
- wmf 3y agoGPUs use 4-6 stacks of HBM2 which is 1,840-2,760 GB/s. It's 2x-3x the bandwidth of M1/M2 Ultra.