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C-DAC Develops India’s First Indigenous Arm-Based CPUs: Flagship AUM Chip With 96 Cores, 96 GB HBM3, 320W TDP,


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The C-DAC AUM CPU is based on the ARM Neoverse V1 core architecture codenamed Zeus. There are a total of 96 cores on the AUM chip but there are divided into two chiplets, each housing 48 V1 cores. Each chiplet has its own memory, I/O, C2C/D2D interconnect, cache, security, and MSCP sub-systems. The two A48Z-based chiplets are connected together using a D2D chiplet interconnect on the same interposer. Each chip also carries 96 MB of L2 cache and 96 MB of system cache.

For memory, the C-DAC AUM CPU uses 64 GB HBM3-5600 while also packing 96 GB HBM3 memory on-die and 8-channel DDR5-5200 memory (scalable up to 16-channels for up to 332.8 GB/s of total bandwidth).


C-DAC is prepping up India's first HPC CPU, the AUM, which will feature 96 Arm cores, 96 GB HBM3 & a TDP of up to 320W.




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