400G vs 800G for AI Clusters: Which to Buy in 2026

A procurement-grade decision framework for 400G vs 800G optics in 2026 — costs, watts/Gbps, switch silicon compatibility, and the 5-step rule ABPTEL uses with AI cluster customers.

A procurement-grade decision framework for 400G vs 800G optics in 2026 — costs, watts/Gbps, switch silicon compatibility, and the 5-step rule ABPTEL uses with AI cluster customers.