AMD Instinct MI455X
24576-bit
The Instinct MI430X is AMD's HPC-focused accelerator in the Instinct MI400 series, built on the CDNA 5 architecture. It keeps full hardware FP64 throughput for scientific simulation alongside low-precision AI formats, with 432 GB of HBM4 memory. First announced in November 2025, it is expected to be available in 2027 and has been selected for supercomputers including Discovery at Oak Ridge National Laboratory and Alice Recoque in France.
Datacenter gpus from AMD announced around the same time as the AMD Instinct MI430X. Add any of them to your compare list to see the specs side by side.
24576-bit
144 GB HBM3E · 4096-bit · 8,192 cores
288 GB HBM3E · 8192-bit · 16,384 cores
288 GB HBM3E · 8192-bit · 16,384 cores
256 GB HBM3E · 8192-bit · 19,456 cores
28 GB GDDR6 · 224-bit · 3,456 cores
192 GB HBM3 · 8192-bit · 19,456 cores
64 GB HBM2e · 4096-bit · 6,656 cores