KIMI K3

AMD MI355X vs NVIDIA B200 vs B300 for Open-Weight Serving in 2026

Kimi K3 open weights need roughly 1.5TB of VRAM, which does not fit on a B200 node. That forces a real hardware decision: B300, two B200 nodes, or AMD's MI355X. Here is the head-to-head with verified specs, the Wafer benchmark, and what it costs per token.