Signal65 Benchmarks Show AMD MI355X Doubles MI300X in Concurrent Agents

Signal65's PINNACLE benchmarks include AMD's Instinct MI355X for the first time, showing roughly double the concurrent agent count of MI300X on identical 8-GPU nodes. It ran 32 Kimi-K3 agents versus about 20 on competing hardware, alongside tests of three new models.

2026-09-19 ~ 2026-09-20 · 3 related posts

• B300 and MI355X Both Sustain 52 Agents, but the Curves Differ Wildly — ryanshrout · 2026-09-19
• AMD MI355X sustains 2x the concurrent agents of MI300X in Signal65 PINNACLE tests, up to 6.5x on MiniMax-M3 — ryanshrout · 2026-09-19
• AMD MI355X runs 32 Kimi-K3 agents per node vs 20 on B300, Signal65 PINNACLE tests show — ryanshrout · 2026-09-20