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Tuesday, March 11th 2025
AMD’s Instinct MI355X accelerator introduces the CDNA4 architecture on TSMC’s N3 process node with a focus on AI workload acceleration. The chiplet-based GPU delivers 2.3 petaflops of FP16 compute and 4.6 petaflops of FP8 compute, marking a 77% performance increase over the MI300X series. The MI355X’s key advancement comes through support for reduced-precision FP4 and FP6 numerical formats, enabling up to 9.2 petaflops of FP4 compute. Memory specifications include 288 GB of HBM3E across eight stacks, providing 8 TB/s of total bandwidth. Production timelines place the MI355X’s market entry in the second half of 2025, continuing AMD’s annual cadence for data center GPU launches. By second half, Oracle will likely prepare data center space for these GPUs and just power them on once AMD ships these accelerators.
Source: Oracle Earning Transcript