SRAM · static random-access memory
Fast on-die memory used for caches and scratchpads, and the basis of HBM-free inference chips; it is also a distinct GPU failure mode that first appears as correctable-error storms.
Current numbers
LPX in full production, 2026-08-24Groq 3 LPX (256 LPUs, ~128 GB SRAM): NVIDIA announced full production 2026-08-24; decode tier beside Rubin GPUs; CPX pulled